Book's that can  help improve people's personality.

Think & Grow Rich Author - Napoleon Hill

The 7 Habits of  Highly Effective People Author - Stephen R. Covey 

The Magic of  Thinking Big Author - David J. Schwartz

The Monk who Sold  His Ferrari Author - Robin Sharma

How to Win Friends & Influence People Author -Dale Carnegie Success to Lead

The Power of Habit Author -Charles Duhigg

Rich Dad Poor Dad Author-Robert Kiyosaki