This third edition of Motivation and Personality has been revised to highlight Maslow's creative thinking and emphasize his far-reaching concepts. Within the text itself, we have reordered the chapters, added new headings and subheadings in one chapter, and deleted a few sections of dated material. Chapter 13 is a new addition to this book. It is the text of a lecture Maslow gave in 1958 at Michigan State University. In the hope of enhancing the reader's sense of the historical and intellectual context of the book, several other features have been added to this edition: a brief biography of Maslow, an afterword on the extensive effect of Maslow's vision in contemporary lives, chapter introductions, a citation study, and a complete bibliography of his work. This edition has four major sections: I. Motivation Theory, 2. Psychopath-ology and Normality, 3. Self-Actualization, and 4. Methodologies for a Human Science.