How to Win Friends and Influence People by Dale Carnegie is a great book. 

I don't mind of the book has a possibility to change someone's life. If you look for some motivations, it would be better if you meet someone who can give you some advises rather than you read the book. :-D  

Sell it like Serhant by Ryan Serhant
Be awesome NOW

the compound effect by Darren hardy
I strongly recommend that every body must read this book