"Memory: How to Develop, Train and Use It" is a book written by William Walker Atkinson. William Walker Atkinson (1862-1932) was an American author, editor, and attorney who wrote extensively on New Thought and self-help topics. The book focuses on memory improvement and techniques for developing and utilizing memory effectively. Published in the early 20th century, "Memory: How to Develop, Train and Use It" is a self-help guide that likely provides practical advice, exercises, and strategies for enhancing one's memory. Atkinson may have drawn on psychological principles and memory training methods available during his time. While the specific techniques may reflect the understanding of memory from the early 1900s, the book could still contain valuable insights and methods for those interested in memory improvement. If you're interested in the history of self-help literature or exploring different approaches to memory enhancement, Atkinson's work might be of interest.