The book "Applied Psychology: The Influential Power of Thought. The third in a series of twelve volumes on the application of psychology to problems of personal and professional effectiveness" by author Warren Hilton is a study that helps the reader understand the influence of mental processes on his life and business success. The author offers the reader to learn more about the principles of psychology and their practical application in personal and professional life. He explores how our thoughts influence our actions, emphasizing that the inner power of our thoughts can be the key to success in any field. This book is not only a theoretical study but also a practical guide to help readers develop their psychic power and use it to achieve their goals. It will be useful not only to specialists in the field of psychology, but also to everyone who wants to improve the quality of their life and achieve success in their business.