I have always enjoyed doing book reviews and my task is easier when the book holds my interest and leaves me with a favorable impression. I was excited to review Matter of Mind as I enjoy reading anecdotes and clinical vignettes from outstanding neuroscientist and seasoned clinicians. The prospect of gaining some insight into the mind of Ken Heilman was a draw to me! I read the first edition of Heilman and Valenstein (1979) when I was in graduate school; the subsequent two editions hold prominent places on my office bookshelves. I eagerly embarked upon my review of this book, loaded as it appeared to be with rich clinical and scientific material.