An Abundance of Katherines

When it comes to relationships, everyone has a type. Colin Singleton’s type is girls named Katherine. He has dated–and been dumped by–19 Katherines. In the wake of The K-19 Debacle, Colin–an anagram-obsessed washed-up child prodigy–heads out on a road trip with his overweight, Judge Judy- loving friend Hassan. With 10,000 dollars in his pocket and a feral hog on his trail, Colin is on a mission to prove a mathematical theorem he hopes will predict the future of any relationship (and conceivably win the girl).An Abundance of Katherines was a 2007 Michael L. Printz Honor book and a finalist for the Los Angeles Times Book Prize. It was also named one of the books of the year by Booklist, Horn Book, and Kirkus.

If you are fully prepared to be inundated with spoilers, you can learn much, much more about Katherines at the book’s Questions page.

If you would like to read this book in another language, go to the Translations page.

Reviews (Spoiler Alert!)

“Imagine an operating room at the start of a daring but well-rehearsed procedure and you will have something of the atmosphere of ”An Abundance of Katherines”: every detail considered, the action unrolling with grace and inevitability.”

-New York Times Book Review

“Green follows his Printz winning Looking for Alaska (2005) with another sharp, intelligent story. The laugh-out-loud humor ranges from delightfully sophomoric to subtly intellectual.”
-Booklist, Starred Review

“Fully fun, challengingly complex, and entirely entertaining.”
-Kirkus, Starred Review

“Laugh-out-loud funny, this second novel by the author of the Printz winner Looking for Alaska charts a singular coming-of-age American road trip that is at once a satire of and a tribute to its many celebrated predecessors.”
-Horn Book, Starred Review

{ 508 comments… read them below or add one }

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vivian November 28, 2014 at 5:31 pm

what was the time or date in the story?


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Margaret December 9, 2014 at 5:12 pm

I’m sorry, WHAT?


Christine October 11, 2014 at 7:49 pm

This book is amazing! Full of the characters insight and thoughts, you really feel like you know the person you feel like you are living in Gunshot Tennessee with the drama and love triangles! Truly amazing work!


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Maria October 14, 2014 at 8:02 pm

Oh this is amazing i love this books


kjsbfsbf October 16, 2014 at 5:46 pm

So, basically does he just go on this exciting mission, to prove that he can get a girlfriend that is not named Katherine, and he won’t get dumped? Or is he trying to get a girl named Katherine and not get dumped? Please help!!!


Jake. October 19, 2014 at 7:49 am

Read the book. And if you have read it, read it again.

Reply October 17, 2014 at 9:11 am

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no October 19, 2014 at 1:30 am

I love《The fault in our stars》so much!


Jake. October 19, 2014 at 7:44 am

John Green is honestly my favourite author, probably ever. He writes in a way that makes his characters impossible not to relate to. Although I’m only 13 he has inspired me to begin writing stories that I find to be relatable and make me happy. Unlike a lot of others my favourite book by John is ‘An Abundance of Kathrines.’ I truly fell in love with the premise of this book.
Regards, Jake.


Mimi December 9, 2014 at 2:05 pm

Dude, I understand. His writing has inspired me to write short and long stories to share with my friends and family, even if i am 12.

Reply October 19, 2014 at 12:40 pm

I discovered the vlogbrothers earlier this year but slowly over time they have helped me with my confidence to vlog, be a nerd and as of yesterday finally tempted me back to audiobooks.

Yesterday was Looking For Alaska and today I have enjoyed An Abundance Of Katherine’s in my phone for Sunday’s entertainment. I am about to finish my house work and then start Paper Towns….

I am loving this newly discovered gem of relaxing and engaging hobbyness :)


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Maria Mendoza October 22, 2014 at 5:17 pm

Dear I was wondering if you could possibly aw see me these questions. what happens to Colin after they drive away? Where do they drive to? What happens to Hassan and Lindsey? Do they ever go out or does Colin and Lindsey go out? What happens to the factory? All these questions I couldnt quite find a reason to in the book. If you could please also answer me these questions please because I am doing this for a class project and would really appreciate it if you could please reply to my questions on or on please and thank you –Maria Mendoza


Trying to help November 3, 2014 at 12:43 pm

I think its the point of a book that it ends, like in tfios the book didn’t end the way you expected and you don’t get answers on your questions but i think its important to except the choice of the author to end the book on a certain way. Well, i thought it was obvious that Colin and Lindsay were a couple, because of the letter she “gave” him, but yeah im not sure. The life will just go on, so does the factory. And where they’re going? I thought the book said that they weren’t going somewhere, they just kept going.


Trying to help November 3, 2014 at 12:45 pm

And with tfios i mean (of course) the book “An Imperial Affliction”…


Margaret December 10, 2014 at 8:45 am

ALSO, I think you can find out enough from the book to know that Hassan and Lindsay are STRICTLY FRIEND


Margaret December 10, 2014 at 8:47 am

S ^^^ At the end of the book, Lindsay and Collin are a thing and Hassan has sworn off girls! Also, Lindsay uses her relationship with Hassan as a JOKE, like “as if I would ever go out with him”. They’re friends, but they would never, like, DATE. Hassan wouldn’t do that to Collin, he wouldn’t be interested anyway, and neither would Lindsay. Just sayin’.

Emma October 25, 2014 at 2:45 pm



kayleigh October 28, 2014 at 1:44 pm

Love all of your books! Currently re-reading An Abundance of Katherines for the third time. It’s so amazing!


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Butterknife - aka Jason November 5, 2014 at 9:23 am

I am a 13 year old straight male, and I, sir, would like to give you a hug. You are an amazing author, and I also like your crash courses in history.

I thank the lord for your existence.


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what is the font used on the cover? i am doing a book report on this book and i want to use this font at the top of the poster board. thanks!


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Sianna November 10, 2014 at 8:11 pm

This book is absolutely amazingly perfect in every single way. Once you read it, you find yourself reading over, over, and over.


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Emily Harris November 23, 2014 at 5:42 pm

I love you book ” An abundance of Katherine’s” I’m only on chapter 3 of it but I hope I get to the end pretty soon but I also want to savor the feeling of the book. I’ve read your book “The fault in our stars” it really touched my heart. I have your books “An abundance of Katherine’s” and “The fault in our stars” , but on my Christmas wish list, the first thing on the list is a collection of all of your books. I just don’t want to read your new book “Let it snow” because, to be honest, I don’t like Christmas chapter books.mif you did read this, I hope you enjoyed it and I hope you will reply, but if you don’t, I under stand.

P.S.- write more books! (I’m your biggest fan!!!! )
Okay? Okay. :)


leigh james November 24, 2014 at 6:15 pm

Wow! I love all of your books, I have read them all and I have to say An Abundance of Katherine’s must be my favorite! Please write more books I need something else to keep me busy!
Thank you John Green!!


katherine November 24, 2014 at 8:35 pm

i like the concept of the story and especially the title!

P.S.- Write more!!!!!



SACKANDCLOTHES November 25, 2014 at 12:12 am

I hate this book. Too boring and I just couldn’t get into it. I mean seriously? A boy who’s obsessed with Katherine’s? #stupid!


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I really like this book!


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TAA1 November 28, 2014 at 7:46 pm

Colin could no more stay cool than a blue whale could stay skinny or Bangladesh could stay rich. I am a middle class Bengali who lives in the UK and you need to explain!


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Hi, TAA1. If you’re so curious about the line, why not look it up? What’s the Gross National Product of Bangladesh? Is it wealthy in comparison to the rest of the world? Is Bangladesh first-world or third-world? Find out for yourself!


Pierce November 29, 2014 at 8:49 pm

Dear Mr. Green,

What sparked the name Katherine? I know you probably get this name every single day, but I just got really curious while reading this book as to why you named all the girls that he dated except for the last one, Katherine. By the way, I loved this book. I have 4 of your books. They are Paper Towns, TFIOS, Looking For Alaska, and An Abundance Of Katherines. Also, will there be a movie to this book?

Thank you,
Pierce (fake name)


Jenna November 30, 2014 at 2:30 pm

This book along with TFIOS, Looking for Alaska, and the others are truly inspirational. In my English class we have to write essays and do power points on books we read over the summer, and out of 33 people in my class, 18 of them read The Fault in our Stars and a classmate and I read An Abundance of Katherines. Everybody who presented has told the teacher they would recommend your books to a friend.


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Jane December 7, 2014 at 12:53 pm

I think, there people like Colin (who remembers everything, because he finds every stupid thing interesting) for not to forget the unimportant things in the world. I wish there were more people like him.
And more people like John Green who realises things like this and shows it to us with a few simple words.
Thank you, John.

(My English isn’t the best…)


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Yara December 10, 2014 at 6:43 pm

This book was amazing. Honestly, i bought the book for a school project where we had to choose a book, and do a book report on it. I couldn’t be happier with my choice. This book is comedic, dramatic and informative. I love how much i learned from reading this novel. The new words in different languages, the fact that drinking 8 glasses of water a day is complete “bullshit” as Colin put it. Hassan gave humor to the story and he is one of my favorite characters ever. Every John Green book was amazing so far and this is definitely not an exception.


Emily December 17, 2014 at 9:56 am

this is a really good book! couldnt put it down!!!


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