"How to make friends and influence people" by Dale Carnegie!
I have to admit the title isn't the best, but the content of this book is pure gold! I'm not a fan of self helping books but seeing everyone talking about this book I had to read it.
Best Investment of my time ever, Dale teaches about being a master of communication giving real life examples for each of his theories and advises. This book changed my perception of humans.
Great book. Together with Rich Dad Poor dad and the four hour workweek, some of the best self help books ive seen.