I have just finished the most influential book I have ever read. Ishmael by Daniel Quinn is the type of book that makes you want to buy 15 copies and send them to all of your friends. It is more powerful if you just begin reading it without researching it first. All I will divulge is this:

It begins with the narrator responding to a newspaper ad that says, “Teacher seeks pupil, must have an earnest desire to save the world. Apply in person.”
The narrator arrives at the office to apply, and finds himself in a room with a gorilla. He notices a sign that reads “With man gone will there be hope for gorilla?”

It is thought-provoking and beautiful. The book has changed my life.

Buy it here for less than $15.