Making Up For Monday: Changing Minds

It's time for Making Up For Monday! This is a weekly meme hosted by me that asks some fun literary questions. Feel free to play along!

This week's question:  Have you ever read a book that changed your opinion on a topic?

One of the reasons I love reading so much is that I learn, grow and have the chance of having my opinion changed. It doesn't happen all the time, but it does happen.

The biggest example of this is Stiff: The Curious Lives of Human Cadavers by Mary Roach. 

This book made me WANT to donate my body to science after I die. Read it and tell me if it doesn't change your mind. 

What about you?  What book changed your mind?