John Green has found his genre: novels about growing up, friendship, love, adventure. Although I Abundance of Katherines well-liked, it "only" gets 4 stars - Green may just (still) better. Again, it creates Green nostrums to rethink and to make an original plot and believable characters. The story is light and airy, therefore, only in passing between witty dialogue and comical situation experiences to discuss the important things in life. Because that can Green, poetic and simply bring things to the point and also so that adults and young people feel addressed. Although not his best, but a good solid book. Fun, entertainment and explanations guaranteed and about life.