"As a Man Thinketh" is a literary essay by James Allen, published in 1903. It was described by Allen as "... dealing with the power of thought, and particularly with the use and application of thought to happy and beautiful issues. Allen has tried to make the book simple, so that all can easily grasp and follow its teaching, and put into practice the methods which it advises. It shows how, in his own thought-world, each man holds the key to every condition, good or bad, that enters into his life, and that, by working patiently and intelligently upon his thoughts, he may remake his life, and transform his circumstances. It was also described by Allen as "A book that will help you to help yourself", "A pocket companion for thoughtful people", and "A book on the power and right application of thought.

In 1903 Allen published his third and most famous book As a Man Thinketh. Loosely based on the Biblical passage of Proverbs 23:7, "As a man thinketh in his heart, so is he," the small work eventually became read around the world and brought Allen posthumous fame as one of the pioneering figures of modern inspirational thought. The book's minor audience allowed Allen to quit his secretarial work and pursue his writing and editing career.

As a Man Thinketh Original Unabridged English value reproduction of As a Man Thinketh by James Allen. In this classic book on thinking, the book describes how each of us shapes the events around us, creating our own lives in abundance.

This little volume (the result of meditation and experience) is not intended as an exhaustive treatise on the much-written-upon subject of the power of thought. It is suggestive rather than explanatory, its object being to stimulate men and women to the discovery and perception of the truth that – "They themselves are makers of themselves" - by virtue of the thoughts, which they choose and encourage; that mind is the master-weaver, both of the inner garment of character and the outer garment of circumstance, and that, as they may have hitherto woven in ignorance and pain they may now weave in enlightenment and happiness.

As a Man Thinketh is a self-help book by James Allen, published in 1903. It was described by Allen as "... [dealing] with the power of thought, and particularly with the use and application of thought to happy and beautiful issues. I have tried to make the book simple, so that all can easily grasp and follow its teaching, and put into practice the methods which it advises. It shows how, in his own thought-world, each man holds the key to every condition, good or bad, that enters into his life, and that, by working patiently and intelligently upon his thoughts, he may remake his life, and transform his circumstances. The price of the book is only one shilling, and it can be carried in the pocket." It was also described by Allen as "A book that will help you to help yourself", "A pocket companion for thoughtful people", and "A book on the power and right application of thought."