The Book of Spirits needs no more recommendations than the Bible, the Bhagavad Gita, the Vedas or the Upanishads. It is dedicated to the most mysterious and important problem that has worried humanity throughout its history: is there life after death? And if so, what is it like and what then is death? Why are we here anyway? The answer to these and similar questions can be found in The Book of Spirits by Allan Kardec. We honestly warn the reader that this is not a book to read, but a book to think about. The books of Allan Kardec will turn out to be powerful competitors (if it is appropriate to talk about competition here) to the works of Madame Blavatsky or the books of Agni Yoga. At the same time, Kardec has an undeniable advantage on his side: his works have simplicity and clarity of presentation, strict logic, harmony of design, elegance of execution and a sense of proportion. The text of this edition in comparison with the 1993 edition. revised and contains significant corrections and clarifications.