The Practice of Not Thinking by Ryunosuke Koike explores how stepping away from constant thinking, judgement, and mental noise can help us experience greater clarity and inner peace. Drawing on Buddhist and Zen-inspired ideas, the author encourages readers to become more aware of their thoughts without becoming controlled by them. The book presents practical perspectives on reducing overthinking, letting go of unnecessary mental clutter, living in the present moment, and developing a calmer relationship with everyday experiences. With its emphasis on mindfulness, simplicity, and self-awareness, it is a thoughtful guide for readers seeking emotional balance, greater focus, and a more peaceful approach to life.