9 Best Self-Help Books for Improving Yourself .

How to Win Friends and Influence People by Dale Carnegie.

Thinking Fast & Slow by Daniel Kahneman.

Think and Grow Rich by Napoleon Hill.

The Power of Positive Thinking by Norman Vincent Peale.

Man’s Search for Meaning by Viktor E. Frankl.

The 7 Habits of Highly Effective People by Stephen R. Covey.

Sapiens by Yuval Noah Harari.

Awaken the Giant Within by Tony Robbins.

The Power of Now by Eckhart Tolle.