I have read parts of the I Ching, the Koran(Q'ran), various philosophers, bunches of self-help books, and bookshelves worth of science books/articles/papers. These have all shaped my thinking. But the list above shaped my views early, and continue to have a profound influence on my thinking.
Accept the past. Live for the present. Look forward to the future. Robot Fusion
"As our island of knowledge grows, so does the shore of our ignorance." John Wheeler
"[A] scientist looking at nonscientific problems is just as dumb as the next guy." Richard Feynman
"[P]etabytes of  data is not the same thing as understanding emergent mechanisms and structures." Jim Crutchfield
José Saramago's "City of the Blind" (read it in Dutch, don't know the title in English) smacked me in the face with the awful truth about people.
Juan Rulfo's "Pedro Paramo" taught me there can be a lot of beauty in such ugliness.
Aldous Huxley's "Brave New World", no explanation needed...
my first love when it comes to books was the little house on the prairie series. it made me realize the potential for emotional connection in place and how the spirit of a place can stay with you. some of the few books that i can vividly remember the experience of reading, even after many years.
others later on along this line would be harry potter and ender's game which both really captured my imagination. i read the first harry potter as soon as it came out and overall that series would be my definite favorite.
most recently i was really effected by absurdistan, which shows the modern human condition so candidly and ironically from simultaneously an american and foreign viewpoint. sad but hopeful at the same time; optimistic for no reason if you will. perfectly infj.
The Naked Ape by Desmond Morris
Peoplewatching by Desmond Morris
Become What You Are by Alan Watts
Catcher in the Rye by J.D. Salinger
What the Buddha Taught by some buddhist dude with a funny name
Zen Mind, Beginner Mind by D.T. Suzuki
A bunch of psychology textbooks