Considered by many to be his greatest book Focusing on Reincarnation, Successive Lives and Regression of Memory, among other equally intriguing subjects in the field, The Problem of Life & Destiny is almost encyclopedic in its scope, providing hundreds of examples and experiments from all over the world. Every topic is dealt at great length bearing in mind scientific standards of validity and reliability, every page a revelation. For many, this book represents the author’s thought at its zenith, the fruit of half a century’s experience and study of psychical phenomena and spirit mediumship. For that reason, Leon Denis is justly considered the most distinguished continuator of Spiritism since Allan Kardec, with a number of books now freshly translated into English by the USSF.