A Book of Deviations is a deliberately understated publication, short and concise, coming up to 22 pages only, saddle stitched and self-released by the author without any grandeur, but so low key that many of us might actually not yet have heard about it. Most importantly though the instructions DSH gives on its 13 pages of text shine with pristine clarity as well as practical relevance to any lone practitioner. This is a book for all of us, and especially I’d say it is a book for magicians who are engaged in shadow work.