The Arcane Formulas or Mental Alchemy by William Walker Atkinson is one of the best resources on mental science attributed to the author's thoughts on the psychology of man wherein he discusses aspects like ego, will, cyclicity and balance among other issues that govern how we think and behave. The book itself is part of multiple volumes on arcane teachings. The name of the title suggests that the author is treading on complex and hitherto narrowly explored facets of the human psyche and it is for this reason that the pages of this book will mesmerise the reader every time it is read.