The Effortless Life
Zen To Done: The Ultimate Simple Productivity System
The Little Book of Contentment
Clutterfree
Zen habits by Leo Babauta: handbook for life
The Simple Guide to a Minimalist Life
The Power of Less: The Fine Art of Limiting Yourself to the Essential...in Business and in Life
Essential Zen Habits: Mastering the Art of Change, Briefly
Mini-missions for Simplicity: small actions for massive change