But that goes for pretty much everything really. Catcher in the Rye in high school. Carnegie's "How to Win Friends and Influence People".
I think books can "change the way you think about almost everything" when you are younger, naive and idealistic. As you grow older, wiser and understand the world more, you leave those childish things behind.
Also, as einstein said : "Reading, after a certain age, diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of thinking."
I'm sure I'm not the only one that used reading as a crutch and a form of escapism and to waste time.
But if you want a book that left an impression on me, K&R's C Programming Language is one. It showed me that a technical book can be concise, well written and enjoyable to read.