"Thought-Culture; Or, Practical Mental Training" by William Walker Atkinson is a self-help or psychological guide written in the early 20th century. The book discusses the principles of thought and trains individuals in cultivating their mental faculties for personal and societal betterment. The main focus is on understanding and developing the processes of thought to achieve success and mastery over one's mental capabilities. The opening of the work introduces the concept of a "New Psychology Movement," highlighting a recent awakening in the understanding of mental and spiritual wellness. Atkinson delves into the nature of thought, defining it as a critical operation of the intellect that has enabled humanity to surpass physical limitations through reasoning and innovation. He emphasizes the importance of developing thought processes systematically and suggests that with mental training, individuals can harness their intellectual powers more effectively, ultimately enhancing their personal and collective progress. (This is an automatically generated summary.)