Stoicism

Stoicism for Beginners

Meditations of Marcus Aurelius

Overthinking: How to Declutter and Unfu*k Your Mind, Build Mental Toughness, Discover Fast Success Habits, Thinking & Meditation, Mindfulness for Creativity, Slow Down the Brain and Be Yourself

Learn To Think Using Thought Experiments

The Wisdom of Sigmund Freud

A General Introduction to Psychoanalysis & Dream Psychology (Psychoanalysis for Beginners)

Emotional Strength Training

Understanding the Psychic Powers of Man (Revised Edition)

The Critical Thinker

Awakening of Intelligence