The 4 Pillars of Problem-Solving: 169 Techniques & Hacks to Solve Challenges With Strategic Thinking. Build Relationships and Collaborate With People by Fixing Tough Problems Using Creative Solutions

How to Solve Our Human Problems: The Four Noble Truths,Geshe K ,

Cracked it!: How to solve big problems and sell solutions like top strategy...

Solving Mathematical Problems: A Personal Perspective

Truth (Central Problems of Philosophy)