Memory: How to Develop, Train and Use It is a practical guide to improving memory through attention, observation, association, visualization, and regular mental exercise. William Walker Atkinson explains how memory works and offers methods for strengthening recall in everyday life. The book discusses concentration, mental imagery, remembering names and faces, retaining ideas, and developing better habits of thought. Rather than treating memory as a fixed ability, Atkinson presents it as a skill that can be trained and improved through disciplined practice. Clear and instructional, this classic self-development work remains useful for readers interested in mental training, learning, focus, and personal improvement.