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

{ 685 comments… read them below or add one }

Ellie November 18, 2015 at 7:47 pm

I really love all your books and the movies they were based on!! (Especially The Fault In Our Stars!


Anon December 4, 2015 at 3:15 pm

The movies were based on the books, you dipshit.


Alyssa January 2, 2016 at 2:09 pm

Haha. Movies are based off books, not the other way around.


What even May 5, 2016 at 3:06 pm

Why are you swearing? This is a authors website! My word!


Woo May 21, 2016 at 4:35 pm

Why is your gramma incorrect? This is *an authors website.


-_- May 31, 2016 at 12:46 pm

At least spell grammar correctly is you wanna correct someones grammar.

sandra May 27, 2016 at 3:29 am

hahahah lol


A Fucking Atheist June 6, 2016 at 8:49 pm

cummies on mi daddi cxx


EMily November 22, 2015 at 6:29 am

A great and interesting book. Good for teens especially the fault in our stars.


danae November 27, 2015 at 5:38 pm

how do you do the charts?? is there like a video where you can explain it? does it really work?


Fatine February 1, 2016 at 8:25 pm

The charts are all explained at the end of the book .


Eleanor December 2, 2015 at 9:10 pm

I am certainly not a Colin, but I’m writing to express that this book and WGWG have honestly both been so relevant to my life because of a recent breakup that landed me in the ER. Yes I was just recently dumped by a Katherine and it was one of the most painful things I’ve ever experienced in my life. THANK YOU honestly for writing books that are so easy to relate to.


Sally April 8, 2016 at 8:19 am

dumped by a Katherine? U are a girl…right?


anon May 26, 2016 at 6:02 pm

@Sally, you are aware that lesbians exist in this world…right??


Katya December 4, 2015 at 4:31 am

My best friend gifted this book,because my name is Ekaterina.It’s a typical name for our country.(I’m from Belarus) And when I read it,I fell in love with John Green. Now I am lying in bed with ” Paper towns” and want to give thanks for experienced emotions .It’s amusing !


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Shelby December 10, 2015 at 7:37 pm

Dear Mr. Green / most amazing writer ever,
My name is shelby. I am 13 years old, and love to read. Your book is inspiring to me because I can understand. Most people think because I am young means that I can’t be that smart, but I can statistically be in college. I never really liked reading until last year my dad died in January and I never said bye. But when I read I feel as of I am there and books can never really leave you. That’s why I love your books because you make books realistic. I was just hoping that maybe you could email me back or poss


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The Public January 2, 2016 at 3:11 am

Not here please


same February 24, 2016 at 1:29 pm



Thalia December 23, 2015 at 2:01 am

Dear Mr.Green,I really love your books and how I can relate so much to them as a teenager. You inspire me not only as a reader but also as a writer.I can actually understand what you are writing which is really amazing as it’s very hard for me to do so with other authors and bodies of literature.I’ve read and reread your books so many times that I feel like I’m also a character in the story, I can visualize it.It also helps me cope with the loss of family and friends so I greatly thank and appreciate that you take the time to wire these books because they really can save lives.


Riti January 4, 2016 at 10:57 am

I talk a lot but when I start reading your books I just can’ t stop reading and become the quietest person on earth. You are the best and your books have shown me that there are still good writers out there.


Chloe Page January 14, 2016 at 12:58 am

Dear Mr. Green,


Maysa Salles January 14, 2016 at 1:58 pm

É o próximo da minha lista. Haha


Madison January 16, 2016 at 11:39 am

Dear Mr Green,
This book is good but I could use some little edits.


Gwen January 28, 2016 at 1:43 pm

Dear Mr.Green,

Your books really got me hooked, I’ve read every single book of yours and they are amazing.


min0 February 9, 2016 at 3:02 pm

I love ur book I’m currently reading the fault in our stars and ive already ordered the abundance of katherines I love reading and you made it even more fun.


Jordan February 12, 2016 at 1:47 pm

Good morning/afternoon John Green,

So I have read through Abundance of Katherines and I loved the book so much. I admire your writing so much, and for my book report in my class it asked me to get information why you write the way you do. I’m curious if you’d ever get back to me before spring break when this is due. If not, that is okay. Thank you for reading this, if you did. But I am curious as to why you write the way you do, and what inspires the way you write.

Jordan A.


Kira February 14, 2016 at 10:08 am

Your books are amazing. I’ve read all of them except two. You were the first author that I ever really liked and read a lot of there books. Your books are so relatable and interesting. Your one of the best authors I’ve ever read, and I’m even recommend your books to my friends.


joseph February 21, 2016 at 9:09 am

hello Mr. john Green . I hope to see you in personal . I am you number one fan and I am really obsessed with your books .


Katerina February 24, 2016 at 10:19 am

I read “An abundance of Katherines” a couple of months ago and I would like to inform you that there is a mistake, at least in the version I was reading. When the word unique is written in different languages, the greek version is wrong. The correct is μοναδικός. It would be much better if you corrected it. It makes definitely a bad impression to show off language knowledge and spell the word wrongly.
Thank you


Jared Artz March 1, 2016 at 2:21 pm

So I just came across this page because I was looking for new books to read. I have to say I read Looking For Alaska over the summer and the book broke my heart. I pictured myself as Alaska and I just I want to know why she did it. What led her to killing herself or was it a freak accident? I feel as though I am Hazel trying to get her answers from her favorite author. I hope you see this and can explain to me the death of Alaska. Thank you.
Much love,
Jared Artz


Breanna roach March 10, 2016 at 8:52 pm

Dear mr.Green,
I really liked all of your books, espacially since you add in parts of the book that make them…… mord mature like.


Cody March 11, 2016 at 2:18 pm

I really like your books – i read all the time when I fly and now i can even bring my dog with me


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Gwendolyn April 8, 2016 at 8:22 am

your book was boring at first, Mr John Green. very boring… i didnt really like Colin….he was weird…and all those interviews. Duh. it was boring, sorry. But the ending was good. it was. not as boring as in the starting….and the tampon strings scene…..damn, it was weirder than ever.


Katerina April 10, 2016 at 8:10 am

Will be the film acording to this book?


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Adriana April 27, 2016 at 11:15 am

I absolutely obsess over the raw emotion and harsh realities John Green addresses in his work. I’ve read TFIOS, Paper Towns, and now Looking for Alaska. John Green doesn’t sugarcoat anything. Even his thoughts and opinions on certain topics amazes me. Wish I personally knew this man, or at least knew someone like him.


chevy May 7, 2016 at 3:21 pm

i dont get the ending can someone explain


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Shobro May 29, 2016 at 8:24 am

Amazing ! I love all John green books!


Leilani July 12, 2016 at 2:13 pm

I love this book so much. I recently started this book and then like the next day i was done. I couldn’t stop reading it, I also personally love how Colin is so smart and how he always go’s back to the other Katherines. Dont stop writing John. You’re a true writer. I dont usually like books from the third person but this book is amazing from third perspective. Your books make me actually think about some decisions in my life, you inspire John Green!!!


Leilani July 12, 2016 at 2:23 pm

Hi its leilani again. i just want to say that…

if that seemed a bit rude, i’m sorry. it wasnt meant to be that way. good bye.


BookieTree July 21, 2016 at 8:41 am

An abundance of Katherines is the first novel to make me laugh out loud.


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