An Abundance of Katherines is about a seventeen year old boy called Colin Singleton; he is a prodigy, but is yet to be a genius because he hasn't had a "Eureka moment". Colin has dated nineteen girls called Katherine, all spelt the same, and he remembers being dumped by all of them.

Colin and his best friend Hassan both go on a road trip after graduation. They drive from Chicago to Tennessee and come to the grave of Archduke Franz Ferdinand, which is where they meet Lindsey. Colin and Hassan then start living with Lindsey and her mother Hollis in Gunshot, Tennessee. He later figures out that his "Eureka moment" could be an equation called the Theorem of Underlying Katherine Probability, which determines the curve of any relationship based on factors of the personalities of both people in the relationship. The book follows the ups and downs of the friendship between Lindsey, Colin and Hassan, the situations they find themselves in and how they deal with them.

An Abundance of Katherines is an extremely interesting book and would appeal to many teenagers. It highlights many problems and issues that face teenagers today and gives some insight into how to deal with these problems. It has a very interesting plot and is not only exciting to read, but has aspects of it which are quite factual. This makes it more of a unique style of writing which makes the book exciting to read.

It is mostly aimed at teenagers and young adults, but it can still be enjoyed by people of all ages. There are interesting facts in the footnotes on each page, which are all fascinating and also very useful. This makes the reading experience much better.

The book is filled with humour and is able to make you laugh, which is clever writing from John Green. However, it can be a bit repetitive at times which can make it a tiny bit boring to read. Also the ending is a bit of an anti-climax, which is quite disappointing as the rest of the book had built up to something a lot better.

John Green has written better books but it was still a very good read. I recommend it to anybody is interested in John Green or Young Adult fiction. Overall I would recommend this book to anybody, as it is a relatively easy read and quite light-hearted.

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