The Power of Positive Thinking: A Practical Guide to Mastering the Problems of Everyday Living is a 1952 self-help book by Norman Vincent Peale. It provides anecdotal “case histories” of positive thinking, and practical instructions which were designed to help the reader achieve a permanent and optimistic attitude. These techniques usually involved affirmations and visualizations. Peale claimed that such techniques would give the reader a higher satisfaction and quality of life. The Power of Positive Thinking was negatively reviewed by scholars and health experts, but was popular and has sold well.