13 Must-Read Business Books That Could Change Your Life

5. How to Win Friends and Influence People by Dale Carnegie

You may spend a large portion of your days at work managing your relationships electronically through your iPhone, e-mail, and Facebook account, but great people skills are still as important in our technologically advanced society as they were in 1937 when this classic book was first published.

This is the definitive manual for gaining people's trust and influencing them in favor of your ideas. 

Want more information on the power of persuasion? Pick up Jeffrey Gitomer's 2007 book,Little Green Book of Getting Your Way: How to Speak, Write, Present, Persuade, Influence, and Sell Your Point of View to Others .