This book was...interesting. It all starts when the main character's girlfriend Katherine breaks up with him, but this is not the first Katherine to break up with him it's the 19th. So to help deal with his grief Hasan, his best friend, drags him on a road trip. Where they might some girls and Colin starts working on his theorem of dumpers and dumpees.
It was a good book but some parts where a little hard to understand, I couldn't make heads or tails out of the math, and they continued to use math after they said they where not going to.