Thomas Oppong's writing spans psychology, philosophy, and self-improvement.

Gandhi once said we must be the change we wish to see in the world. If you're like me, you've spent a lot of time talking with therapists and friends, and reading about personal development. And if you're like me, you've probably noticed that much of the advice and coaching tends to echo the same themes.

Thomas Oppong noticed this too, and he summarized what he found. His list serves as a helpful set of reminders and prompts.

ARTICLE: All the Best-Selling Psychology Books, Boiled Down to 20 Simple Rules