""A Textbook in Psychology: An Attempt to Found the Science of Psychology on Experience, Metaphysics, and Mathematics"" is a book written by Johann Friedrich Herbart in 1891. This book is a comprehensive guide to the study of psychology and its various aspects. Herbart attempts to establish psychology as a science by basing it on experience, metaphysics, and mathematics. The book is divided into three parts, each of which deals with a different aspect...