Meditations by Marcus Aurelius. As a Man Thinketh by James Allen. Man's Search for Meaning by Viktor Frankl. 12 Rules for Life by Jordan Peterson. Tao Te Ching by Lao Tzu. How to Win Friends and Influence People by Dale Carnegie. Who Moved My Cheese by Spencer Johnson. Think on These Things by Jiddu Krishnamurti. Think and Grow Rich by Napoleon Hill. The 7 Habits of Highly Effective People by Stephen Covey