Florence Littauer's book was a game changer for me! Sure we always hear that everyone is different, but I never understood what drove that or really accepted it at its core. Ever wonder why you just don't get along with someone? Maybe they are perfectly nice or seemingly smart enough, but interacting with them drives you a little crazy over time (or maybe right away)? This book explained this phenomenon with ease and helped me truly accept others as they are. I believe this to be a crucial tool for any relationship, from family member to coworker, spouse to friend. Everyone really is different, and now I can see why that is a beautiful thing!
If you plan to interact with another human being at some point in your life (and I highly recommend that you do), then do yourself a favor and read this book!