The book by the famous English scientist and popularizer of science outlines the fundamental approaches to the study of memory, the history of these studies and modern ideas about the evolution and mechanisms of memory. The author vividly and wittily describes his own 30 years of experience in this field and the daily life of his laboratory. The book attracts with its breadth of coverage of the problem and brilliant presentation style. For neurophysiologists and everyone interested in problems of biology and psychology.