The Law of Attraction BOOK by William Walker Atkinson is a classic New Thought book that explores the power of positive thinking. Atkinson was one of the first people to write about the Law of Attraction, long before Rhonda Byrne's The Secret. The author explains the similarities between the law of gravitation and the mental law of attraction and discusses the concept of thought vibrations. Atkinson argues that thought vibrations are as real as those manifesting as light, heat, magnetism, and electricity. The book provides exercises and affirmations to help readers establish new mental attitudes and raise their mental keynote. Atkinson also shows how to overcome negative emotions and tune in to the harmony of the law. Although this book was written years ago, it still sounds fresh and contemporary, with clear and concise explanations of mental laws and processes.