When Sean Gerrish isn't automating the creation of wordplayish portmanteaux, he wrangles artificial intelligence… or writes this book about it. It's a popular-science survey of modern AI. You find out why, e.g., a neural net might be a good system for finding faces in a picture; but you won't learn the details of how to code up such a thing. There's some nice summaries of recent history, with DARPA challenges and NetFlix recommendations and such. It's a fun read.