Ajax-loader

kollekció: Angol nyelvű könyvek

“Do you speak English? A princessz ijedten felelt tökéletes angolsággal, de hirtelen abbahagyta. Hiszen angolul magyarázta el, hogy mért nem tud angolul!”
(Rejtő Jenő)


Robert Ludlum - The ​Parsifal Mosaic
Michael ​Havelock's world died on a moonlit beach on the Costa Brava. He watched as his partner and lover, Jenna Karats, double agent, was efficiently gunned down by his own agency. There was nothing left for him but to quit the game, get out. Until, in one frantic moment on a crowded railroad platform in Rome, Havelock saw his Jenna alive. From then on, he was marked for death by both U.S. and Russian assassins, racing around the globe after his beautiful betrayer, trapped in a massive mosaic of treachery created by a top-level mole with the world in his fist—Parsifal.

Birdsong
elérhető
7

Sebastian Faulks - Birdsong
In ​1910 a young Englishman, Stephen Wraysford, goes to Picardy, France, to learn the textile business. While there he plunges into a love affair with the young wife of his host, a passion so imperative and consuming that it changes him forever. Several years later, with the outbreak of World War I, he finds himself again in the fields of Picardy, this time as a soldier on the Western Front. A strange, occasionally bitter man, Stephen is possessed of an inexplicable will to survive. He struggles through the hideously bloody battles of the Marne, Verdun, and the Somme (in the last named, thirty thousand British soldiers were killed in the first half hour alone), camps for weeks at a time in the verminous trenches, and hunkers in underground tunnels as he watches many of the companions he has grown to love perish. In spite of everything, Stephen manages to find hope and meaning in the blasted world he inhabits. Sixty years after war's end, his granddaughter discovers, and keeps, Stephen's promise to a dying man. Sebastian Faulks brings the anguish of love and war to vivid life, and leaves the reader's mind pulsating with images that are graphic and unforgettable.

Helen Fielding - Bridget ​Jones - The Edge of Reason
The ​Wilderness Years are over. But not for long. At the end of _Bridget Jones' Diary,_ Bridget hiccuped off into the sunset with man-of-her-dreams Mark Darcy. Now, in _The Edge of Reason,_ she discovers what it is like when you have the man of your dreams actually in your flat and he hasn't done the washing-up, not just the whole of this week, but ever. Lurching through a morass of self-help-book theories and mad advice from Jude and Shazzer, struggling with a boyfriend-stealing ex-friend with thighs like a baby giraffe, an 8ft hole in the living-room wall, a mother obsessed with boiled-egg peelers, and a builder obsessed with large reservoir fish, Bridget embarks on a spiritual epiphany, which takes her from the cappuccino queues of Notting Hill to the palm and magic mushroom-kissed shores of... Bridget is back. V. g.

Dan Brown - Angels ​and Demons
When ​a world renowned scientist is found brutally murdered in a Swiss research facility, a Harvard professor, Robert Langdon, is summoned to identify the mysterious symbol seared onto the dead man's chest. His baffling conclusion: that it is the work of the Illuminati, a secret brotherhood presumed extinct for nearly four hundred years - reborn to continue their bitter vendetta against their most hated enemy, the Catholic church.In Rome, the college of cardinals assembles to elect a new pope. Yet somewhere within the walls of the Vatican, an unstoppable bomb of terrifying power relentlessly counts down to oblivion. While the minutes tick away, Langdon joins forces with Vittoria Vetra, a beautiful and mysterious Italian scientist, to decipher the labyrinthine trail of ancient symbols that snakes across Rome to the long-forgotten Illuminati lair - a secret refuge wherein lies the only hope for the Vatican.But, with each revelation comes another twist, another turn in the plot, which leaves Langdom and Vetra reeling and at the mercy of a seemingly invisible enemy...ANGELS & DEMONS is a breathtakingly brilliant thriller which catapults the reader through the antiquity of Rome, through sealed crypts, dangerous catacombs, deserted cathedrals and even the most secret vault on earth. As the prequel to Dan Brown's worldwide bestseller, The Da Vinci Code, it has the distinction of introducing his readers to Harvard symbologist, Robert Langdon.

E. L. James - Fifty ​Shades of Grey
When ​literature student Anastasia Steele is drafted to interview the successful young entrepreneur Christian Grey for her campus magazine, she finds him attractive, enigmatic and intimidating. Convinced their meeting went badly, she tries to put Grey out of her mind – until he happens to turn up at the out-of-town hardware store where she works part-time. The unworldly, innocent Ana is shocked to realize she wants this man, and when he warns her to keep her distance it only makes her more desperate to get close to him. Unable to resist Ana’s quiet beauty, wit, and independent spirit, Grey admits he wants her – but on his own terms. Shocked yet thrilled by Grey’s singular erotic tastes, Ana hesitates. For all the trappings of success – his multinational businesses, his vast wealth, his loving adoptive family – Grey is man tormented by demons and consumed by the need to control. When the couple embarks on a passionate, physical and daring affair, Ana learns more about her own dark desires, as well as the Christian Grey hidden away from public scrutiny. Can their relationship transcend physical passion? Will Ana find it in herself to submit to the self-indulgent Master? And if she does, will she still love what she finds? Erotic, amusing, and deeply moving, the Fifty Shades Trilogy is a tale that will obsess you, possess you, and stay with you forever.

Stephenie Meyer - New ​Moon
For ​Bella Swan, there is one thing more important than life itself: Edward Cullen. But being in love with a vampire is more dangerous than Bella ever could have imagined. Edward has already rescued Bella from the clutches of an evil vampire but now, as their daring relationship threatens all that is near and dear to them, they realise their troubles may just be beginning ...

Eclipse
elérhető
21

Stephenie Meyer - Eclipse
Readers ​captivated by Twilight and New Moon will eagerly devour Eclipse, the much anticipated third book in Stephenie Meyer's riveting vampire love saga. As Seattle is ravaged by a string of mysterious killings and a malicious vampire continues her quest for revenge, Bella once again finds herself surrounded by danger. In the midst of it all, she is forced to choose between her love for Edward and her friendship with Jacob --- knowing that her decision has the potential to ignite the ageless struggle between vampire and werewolf. With her graduation quickly approaching, Bella has one more decision to make: life or death. But which is which?

Twilight
elérhető
32

Stephenie Meyer - Twilight
A ​seventeen-year-old teenager, Bella Swan, moved from Phoniex to Forks, Washington to live with her father. After going to school one day, she falls deeply in love with who she didn't know was something she could have never guessed....a vampire. The gorgoeus Edward Cullen is the vampire. Once Edward gets over being a vampire and Bella a human, they get together. Although everybody else thinks that it's weird that Edward is finally dating, Bella and Edward simply don't care. When an unexpected visitor comes to Forks, Edward and Bella start to have some trouble. What will happen next? You'll have to read to find out.

Stephenie Meyer - Breaking ​Dawn
To ​be irrevocably in love with a vampire is both fantasy and nightmare woven into a dangerously heightened reality for Bella Swan. Pulled in one direction by her intense passion for Edward Cullen, and in another by her profound connection to werewolf Jacob Black, she has endured a tumultuous year of temptation, loss and strife to reach the ultimate turning point. Her imminent choice to either join the dark but seductive world of immortals or pursue a fully human life has become the thread from which the fate of two tribes hangs. Now that Bella has made her decision, a startling chain of unprecedented events is about to unfold with potentially devastating and unfathomable consequences. Just when the frayed strands of Bella's life - first discovered in TWILIGHT, then scattered and torn in NEW MOON and ECLIPSE - seem ready to heal and knit together, could they be destroyed...forever?

7163sphvcgl
elérhető
11

Ismeretlen szerző - Cambridge ​Advanced Learner's Dictionary
Clear ​definitions and prominent guidewords help you find the meaning you want quickly and easily. Hundreds of new words ensure your English is up to date. And 'Word partner' boxes show you how to use words in the most natural way. * NEW! 'Extra help' section includes maps, illustrations and photos, and the innovative 'Let's Talk' section which focuses specifically on spoken English. * NEW! Even more 'Common mistakes' boxes help you avoid typical errors. * NEW! Thesaurus panels help you widen your vocabulary. The version with CD-ROM includes: * Recordings of every word in British and American English - letting you practise your pronunciation. * Interactive exercises including exam practice and past papers for IELTS, FCE, CAE, CPE and BEC. * Extra collocation information and thousands of example sentences. * UNIQUE! Cambridge SMART thesaurus turns the dictionary into a thesaurus. * QUICKfind, a mini pop-up version of the dictionary.

Thegift
elérhető
14

Cecelia Ahern - The ​Gift
What's ​your Christmas wish? For Lou Suffern it's time. An extremely successful business man, Lou always has to be two places at one time, though usually it's at the office and not at home with his doting wife and two young children. When Lou gets closer to a promotion at work his home life starts to really unravel, and as the holidays draw closer he begins to resemble Ebenezer Scrooge. Enter Gabe, a homeless man Lou buys coffee for one day. Inspired by his own random act of kindness, Lou goes one step further and lands Gabe a job in the mail room of his company. But when Gabe begins to meddle in Lou's life, Lou quickly begins to regret his hasty good deed. Gabe seems to know more about Lou than Lou does about himself, and, more importantly, how does Gabe always seem to be two places at once? As Christmas draws closer, Gabe is able to make Lou finally understand the gift of time and discover what's truly important in life. But can he help him fix what's broken before it's too late?

Rob Nolasco - Péter Medgyes - When ​in Britain - Intermediate
Ez ​a tankönyv egy gyakorlat-orientált kommunikatív mű, melyet elsősorban olyan nyelvtanulók számára írtak, akik már két vagy három éve tanulják ez

Takács Erika - Angol-magyar ​zsebszótár
... ​több mint 5000 címszót tartalmaz. Utazáshoz, munkához, diákoknak.

E. L. James - Fifty ​Shades Freed
When ​unworldly student Ana Steele first encountered the driven, damaged young entrepreneur Christian Grey it sparked a sensual affair that changed both their lives irrevocably. Shocked, intrigued, and ultimately repelled by Christian’s singular sexual tastes, Ana demanded a deeper commitment; determined to keep her, Christian agreed. Now, together, they have more – love, passion, intimacy, and a world of infinite possibilities. But Ana always knew that loving her Fifty Shades would not be easy, and being together poses challenges neither of them ever anticipated. Ana must somehow learn to share Christian’s opulent lifestyle without sacrificing her own integrity, identity or independence; Christian must somehow overcome his compulsion to control, and lay to rest the horrors that blighted his past and haunt his present. Just when it seems that together their love can conquer any obstacle, misfortune, malice and fate combine to make Ana’s worst nightmares come true. Alone and desperate, she must face down the poisoned legacy of Christian’s past. Seductive, shocking, sad and funny, Fifty Shades Freed is the compelling final volume in the Fifty Shades trilogy.

Jane Austen - Emma ​(angol)
Jane ​Austen teased readers with the idea of a 'heroine whom no one but myself will much like', but Emma is irresistible. 'Handsome, clever, and rich', Emma is also an 'imaginist', 'on fire with speculation and foresight'. She sees the signs of romance all around her, but thinks she will never be married. Her matchmaking maps out relationships that Jane Austen ironically tweaks into a clearer perspective. Judgement and imagination are matched in games the reader too can enjoy, and the end is a triumph of understanding.

Brian Abbs - Ingrid Freebairn - Opening ​Strategies - Student's Book
Opening ​Strategies is a beginners' or false beginners' course for students aged 14 or over and is the first book in the Strategies series - a series which takes students from beginners' level to First Certificate level.

J. K. Rowling - Harry ​Potter and the Philosopher's Stone
Harry ​Potter is an ordinary boy who lives in a cupboard under the stairs at his Aunt Petunia and Uncle Vernon’s house, which he thinks is normal for someone like him who’s parents have been killed in a ‘car crash’. He is bullied by them and his fat, spoilt cousin Dudley, and lives a very unremarkable life with only the odd hiccup (like his hair growing back overnight!) to cause him much to think about. That is until an owl turns up with a letter addressed to Harry and all hell breaks loose! He is literally rescued by a world where nothing is as it seems and magic lessons are the order of the day. Read and find out how Harry discovers his true heritage at Hogwarts School of Wizardry and Witchcraft, the reason behind his parents mysterious death, who is out to kill him, and how he uncovers the most amazing secret of all time, the fabled Philosopher’s Stone! All this and muggles too. Now, what are they?? The Author: This is Jo’s first book and she has already written seven outlines for Harry’s further adventures at Hogwarts. She lives in Edinburgh.

George Mikes - How ​to be a Brit
George ​Mikes has been studying the British for a long time; here in one book are his three major works, in which he unstintingly offers the fruits of forty years of field research to all aspirant Brits. Having himself been born abroad, Mr. Mikes is in the ideal position to counsel others in the same unhappy state - and even Brits born and bred may pick up a few unexpected tips from his irresistible blend of laconic humour and sharp observation.

Raymond Murphy - English ​Grammar in Use
English ​Grammar in Use Third edition is a fully updated version of the classic grammar title. It retains all the key features of clarity and accessibility that have made the book popular with students and teachers alike. Designed to be flexible, the book is available both with and without answers, making it ideal for self-study, but also suitable for reinforcement work in the classroom. The 'with answers' version of the book comes with a handy pull-out reference panel which allows students to review key grammar points at a glance. The book is also available with a CD-ROM, giving hundreds of interactive exercises to reinforce the language learned in the book.

Cast_marked
elérhető
4

P. C. Cast - Kristin Cast - Marked
The ​House of Night series is set in a world very much like our own, except in 16-year-old Zoey Redbird's world, vampyres have always existed. In this first book in the series, Zoey enters the House of Night, a school where, after having undergone the Change, she will train to become an adult vampire--that is, if she makes it through the Change. Not all of those who are chosen do. It's tough to begin a new life, away from her parents and friends, and on top of that, Zoey finds she is no average fledgling. She has been Marked as special by the vampyre Goddess, Nyx. But she is not the only fledgling at the House of Night with special powers. When she discovers that the leader of the Dark Daughters, the school's most elite club, is misusing her Goddess-given gifts, Zoey must look deep within herself for the courage to embrace her destiny--with a little help from her new vampyre friends.

Elizabeth Gilbert - Committed
At ​the end of her bestselling memoir Eat, Pray, Love, Elizabeth Gilbert fell in love with Felipe, a Brazilian-born man of Australian citizenship who'd been living in Indonesia when they met. Resettling in America, the couple swore eternal fidelity to each other, but also swore to never, ever, under any circumstances get legally married. (Both were survivors of previous horrific divorces. Enough said.) But providence intervened one day in the form of the United States government, which - after unexpectedly detaining Felipe at an American border crossing - gave the couple a choice: they could either get married, or Felipe would never be allowed to enter the country again. Having been effectively sentenced to wed, Gilbert tackled her fears of marriage by delving into this topic completely, trying with all her might to discover through historical research, interviews, and much personal reflection what this stubbornly enduring old institution actually is. Told with Gilbert's trademark wit, intelligence and compassion, Committed attempts to 'turn on all the lights' when it comes to matrimony, frankly examining questions of compatibility, infatuation, fidelity, family tradition, social expectations, divorce risks and humbling responsibilities. Gilbert's memoir is ultimately a clear-eyed celebration of love with all the complexity and consequence that real love, in the real world, actually entails.

9780451520883
elérhető
18

J. M. Barrie - Peter ​Pan
This ​is a timeless classic of children's literature in an exquisite full colour edition that will be cherished by all ages. It is fully illustrated with distinctive stained edging and decorative endpapers. It is suitable for children aged 10 to 13 years old. Neverland is home to Peter Pan, a young boy who has never grown up. On one of his visits to London, Peter makes the acquaintance of young Wendy Darling, whom he invites to travel with him to Neverland and become the mother of his gang of Lost Boys. Flying through the night sky to Neverland, Wendy and her brothers John and Michael are soon caught up in marvellous adventures with the Indian Princess Tiger Lily, the loyal fairy Tinker Bell and Peter's nemesis, a sinister hook-handed pirate known as Captain Hook. Spun by J.M. Barrie from his stage play of the same name, „Peter Pan” is a timeless classic of children's literature. Illustrated with plates by F.D. Bedford, this exquisite full-colour edition features an elegant bonded-leather binding, a satin-ribbon bookmark, distinctive stained edging and decorative endpapers. It's a book that will be cherished by readers of all ages.

Donna Tartt - The ​Secret History
This ​novel is set on a small college campus in Vermont. Dissatisfied with the crass values of their fellow students, a small corps of undergraduates groups itself around a favored professor of classics, who nurtures both their sense of moral elevation and an insularity from conventional college life that ultimately proves fatal. Among Prof. Julian Morrow's followers are Henry Winter, a tall scion of a wealthy St. Louis family, the twins Charles and Camilla Macaulay, both intellectually gifted and eccentric only in their excessive mutual devotion; Francis Abernathy, a dandyish homosexual slowly awakening to his sexuality; and Edmund (Bunny) Corcoran, who becomes the group's victim.

Bosz
elérhető
59

Roald Dahl - Boszorkányok
Gyerekmesékben ​a boszorkányok mindig fura, fekete kalapot és fekete köpönyeget viselnek, valamint seprűnyélen lovagolnak. Ez azonban nem egy gyerekmese, itt most az igazi boszorkányokról lesz szó. A legfontosabb dolog, amit az igazi boszorkányokról tudni kell, a következő. Nagyon figyeljetek, és sose felejtsétek el, amit most mondok. Az igazi boszorkányok hétköznapi ruhákat hordanak, és nagyon hasonlítanak a hétköznapi nőkhöz. Hétköznapi házakban élnek, és hétköznapi állásuk van. Ezért olyan nehéz nyakon csípni őket. Roald Dahl a Meghökkentő mesék írójaként vált közismertté, de Nagy-Britanniában és világszerte gyerekkönyveivel lett igazán népszerű. Ezek a könyvek azonban nemcsak a gyerekek számára, hanem a felnőtteknek is jó szórakozást nyújtanak. Lebilincselő történeteit mesterien szövi át humorral, bájjal és bölcsességgel, de a meghökkentő fordulatok itt sem maradhatnak el. Roald Dahl-t Nagy-Britannia legnépszerűbb szerzőjének választották meg, Boszorkányok című könyve 1983-ban pedig elnyerte a Whitbread-díjat, mely elismrés a legjobb kortárs brit szerzőt illeti meg.

Ismeretlen szerző - Olyan ​kicsi krumplik vagyunk... - What small potatoes we all are...
Ehhez a könyvhöz nincs fülszöveg, de ettől függetlenül még rukkolható/happolható.

Mark Twain - The ​Adventures of Tom Sawyer
An ​idyllic snapshot of a boy's childhood along the banks of the Mississippi River, Twain's The Adventures of Tom Sawyer is the author's work that comes closest to his boyhood experiences of growing up in Hannibal in the 1840s. Mischievous and full of energy, Tom enjoys childish pranks and pastimes with his friends, Huck Finn, the town outcast and Joe Harper, his best friend. However, at the town graveyard, Huck and Tom witness a murder, carried out by local vagabond Injun Joe. They vow never to tell a soul about what they have seen and so begins their journey into adulthood as Tom wrestles with his own morality, guilt and anxiety. A 'coming of age' tale, it is through Tom's adventures and relationships with others that he becomes more responsible and more aware of his own inner conflict. Through the central characters of Tom and Huck, Twain satirises the moral rigidity of society and adult hypocrisy, whilst at the same time giving a nostalgic portrayal of a young boy's journey into adulthood.

Tom Hutchinson - Project ​English 2. (Workbook)
This ​Workbook accompanies Project English 2 and contains additional write-in activities related to the language syllabus of Student's Book 2. The teacher's book indicates when the Workbook exercises will be most appropriate.

Veronica_2broth_2b-_2binsurgent_2b_2528tome2_2529
elérhető
15

Veronica Roth - Insurgent
One ​choice can transform you—or it can destroy you. But every choice has consequences, and as unrest surges in the factions all around her, Tris Prior must continue trying to save those she loves—and herself—while grappling with haunting questions of grief and forgiveness, identity and loyalty, politics and love. Tris's initiation day should have been marked by celebration and victory with her chosen faction; instead, the day ended with unspeakable horrors. War now looms as conflict between the factions and their ideologies grows. And in times of war, sides must be chosen, secrets will emerge, and choices will become even more irrevocable—and even more powerful. Transformed by her own decisions but also by haunting grief and guilt, radical new discoveries, and shifting relationships, Tris must fully embrace her Divergence, even if she does not know what she may lose by doing so. Megjelenés: 2012. május

Walter Isaacson - Steve ​Jobs
Based ​on more than forty interviews with Jobs conducted over two years—as well as interviews with more than a hundred family members, friends, adversaries, competitors, and colleagues—Walter Isaacson has written a riveting story of the roller-coaster life and searingly intense personality of a creative entrepreneur whose passion for perfection and ferocious drive revolutionized six industries: personal computers, animated movies, music, phones, tablet computing, and digital publishing. At a time when America is seeking ways to sustain its innovative edge, and when societies around the world are trying to build digital-age economies, Jobs stands as the ultimate icon of inventiveness and applied imagination. He knew that the best way to create value in the twenty-first century was to connect creativity with technology. He built a company where leaps of the imagination were combined with remarkable feats of engineering. Although Jobs cooperated with this book, he asked for no control over what was written nor even the right to read it before it was published. He put nothing off-limits. He encouraged the people he knew to speak honestly. And Jobs speaks candidly, sometimes brutally so, about the people he worked with and competed against. His friends, foes, and colleagues provide an unvarnished view of the passions, perfectionism, obsessions, artistry, devilry, and compulsion for control that shaped his approach to business and the innovative products that resulted. Driven by demons, Jobs could drive those around him to fury and despair. But his personality and products were interrelated, just as Apple’s hardware and software tended to be, as if part of an integrated system. His tale is instructive and cautionary, filled with lessons about innovation, character, leadership, and values.

P. G. Wodehouse - Jeeves ​and Friends (Oxford Bookworms)
What ​on earth would Bertie Wooster do without Jeeves, his valet? Jeeves is calm, tactful, resourceful, and has the answer to every problem. Bertie, a pleasant young man but a bit short of brains, turns to Jeeves every time he gets into trouble. And Bertie is always in trouble. These six stories include the most famous of P. G. Wodehouse's memorable characters. There are three stories about Bertie and Jeeves, and three about Lord Emsworth, who, like Bertie, is often in trouble, battling with his fierce sister Lady Constance, and his even fiercer Scottish gardener, the red-bearderd Angus McAllister... (Word count 22,670)

Edgar Allan Poe - Elfeledett ​történetek / Forgotten Tales
Az ​Edgar Allan Poe összes műveit felölelő kétnyelvű sorozat nyolcadik kötete a szinte teljesen ismeretlen, "elfeledett" Poe-novellákból válogat. Kalandos utazás a Sziklás-hegységen keresztül, az újságírás és az irodalmi élet furcsaságai, egy nevetséges félreértés, különös találmányok, metafizikai és természetfilozófiai ötletek vetnek fényt Poe nyelvi játékokban is gazdag vizionárius világára. Az eredeti és a fordítás egymás melletti közlése a könyvet a nyelvtanulók számára is hasznossá teszi. "Poe elsősorban intellektuális és kívülálló alkotó, magányos zseni, nem besorolható sehová sem, inkább az ő művei alapján sorolnak be később másokat. Mindaz, amiről írt, elsősorban életéből fakadt, még akkor is (mint ahogyan azt néhány mai amerikai irodalomtörténész kiderítette), amikor azt állítja, hogy tudatosan hozta létre műveit. Olyan életet élt és életművet hagyott hátra, amely - Borges szavaival élve - több árnyékot is vet egyszerre. Tény, hogy több rosszabb és jobb követő mellett egy a mai napig eleven szubkultúrát is inspirált. Helyüket nem találók, kirekesztettek találják meg újra és újra vigasznyújtó elődjüket benne, órákra, hetekre, évekre is talán. Sokukat lenyűgözi, de sokukat egyszerűen csak szórakoztatja, amit Poe garabonciás köpönyege alatt találnak. Egy mélyre nyúló konklúzió azonban csak a "visszatérőkben" fogalmazódik meg leginkább, akik később, az innen származó fontos lökés után magukra nézve is fontosnak találják a miért sokat emlegetett kérdését. Nekik és azoknak is, akik újra és újra szembe akarnak találkozni azokkal a félelmekkel és kínokkal, amelyeket sokáig elrejteni tartottak jobbnak, mindig hálás és tisztelt zugot jelent majd Poe árnyéka."

Susan Coolidge - What ​Katy Did Next
Katy ​Carr can hardly believe it when she is invited to spend a whole year in Europe with Mrs Ashe and Amy. Although a year seems like a long time away from her beloved family, living in the small American town of Burnet, Katy embarks enthusiastically on her greatest adventure. This charming story, first published in 1886, is the third of Susan Coolidge's three hugely popular Katy books.

Kollekciók