How to Have a Beautiful Mind
Lateral Thinking: Creativity Step by Step
Six Frames: For Thinking About Information
Think!: Before It's Too Late
De Bono's Thinking Course, Revised Edition
Edward de Bono's Masterthinker's Handbook
Teach Yourself How To Think
Mechanism of Mind
Six Thinking Hats
Creativity Workout: 62 Exercises to Unlock Your Most Creative Ideas