This book consists of two parts. The first is a collection of short letters by Spare and Kenneth & Steffie Grant, and also bits of Kenneth Grants diaries, all written between 1949 and 1956 common era. This gives explainations of Spares magical philosophy and his art in a less enigmatic way then his writings do. The second part is The Book of Zos vel Thanatos, containing The Logomachy, The Zotic Grimoire: The Formulae of Zos vel Thanatos and The Living Word, all later material by Spare published here for the first time.The book is filled to the brim with Spare's art, including some beautyful colour pictures. Spare was a major influence on contemporary magick and this book deepens one's understanding of him greatly.