This study explores the inner world of a rare human phenomenon-a man who was endowed with virtually limitless powers of memory. From his intimate knowledge of S., the mnemonist, gained from conversations and testing over a period of almost thirty years, A. R. Luria is able to reveal in rich detail not only the obvious strengths of S.'s astonishing memory but also his surprising weaknesses: his crippling inability to forget, his pattern of reacting passively to life, and his uniquely handicapped personality.

Russian psychologist A. R. Luria presents a compelling portrait of a man's heroic struggle to regain his mental faculties. A soldier named Zasetsky, wounded in the head at the battle of Smolensk in 1943, suddenly found himself in a frightening world: he could recall his childhood but not his recent past; half his field of vision had been destroyed; he had great difficulty speaking, reading, and writing. Much of the book consists of excerpts from Zasetsky's own diaries. Laboriously, he records his memories in order to reestablish his past and to affirm his existence as an intelligent being. Luria's comments and interpolations provide a valuable distillation of the theory and techniques that guided all of his research. His "digressions" are excellent brief introductions to the topic of brain structure and its relation to higher mental functions.