<p><em>First published in 1926, Graham Wallas's The Art of Thought is a pioneering exploration of the creative process. </em>Blending psychology, philosophy, and personal insight, Wallas proposes a now-classic four-stage model of creativity: preparation, incubation, illumination, and verification. This influential work laid the groundwork for modern theories of innovation and problem-solving, inspiring generations of thinkers across disciplines. A timeless guide to understanding how ideas emerge, evolve, and take shape, Wallas's book remains essential reading for anyone interested in the nature of creativity. The Art of Thought 1926, was the first work to give a clear, inspiring. and authoritative exposition of the process of reasoning, in language adapted to the general reader as well as the student of psychology. It established itself as a standard guide to the mechanism of thought, and its message remains of essential value to a world confronted with problems of increasing complexity.</p>