"Here's to all the places we went. And all the places we'll go. And here's to me, whispering again and again and again and again: iloveyou."
After being dumped by his nineteenth girlfriend named Katherine, Colin Singleton he takes a much needed road trip with his best friend. They spend the next weeks in a small town recording people's stories of the work that they've done working in a mine. Colin is also determined to prove the "Theorem of Underlying Katherine Predictability," which will prove the length and dumper of any relationship. Along the way, he discovers there might be a lot more to relationships that can be proven by a theorem.
This book was a typical young-adult-coming-of-age story. It was often funny with catchy dialogue and interesting characters. I also thought it gave a very realistic protrayal of life-and-love at 17. I liked it, but didn't love it. I love John Green, but this one wasn't my favorite.