According to the information center of Imam Ali Specialized Library, the book is the second volume of a series published by Revak in Turkey on the Prophet's House.
Printed as Şâh-ı Velâyet Sırr-ı Hidâyet Hazret-i İmâm Ali the book is compiled by Seyyid Ahmad Muhtar Behli. It was published over 100 years ago in Turkish for the first time. Dr. Meral transfers the new edition of the book into Latin script.
A part of the book's preface reads as follows: "The present work is one of the rare books on our Imam Hazara Ali (AS) which was first published in 1909 in Arabic script in Istanbul. By writing the book, Seyyid Muhtâr Belhî intended to create a series of works on the lives of other members of the Prophet's household and even his top companions like Salman Farsi, Abuzar Ghafari, Ammar ibn Yaser and Belal Habashi, but he failed to publish any other volumes than the first one. The present volume is the Latinized version of the original book."