A great Sufi scholar of XV century Seyid Yahya Shirvani Bakuvi’s book “Shefa al Esrar” (“The Secrets of Sufism”) has been published under the decision of the Scientific Council of the Institute of Manuscripts named after Fuzuli. According to the Institute of Manuscripts, along with being the first prose in Azerbaijani in the field of Sufism, the book is of great importance from the standpoint of theme and language. A designer of the book, a Doctor of Philosophy on Philological Sciences Mehmet Rihtim has written an introduction to the work. The introduction reflects the history of Sufism. Scientific editors of the new book are PhD Zumrud Guluzadeh and Doctor of Philology Azada Musayeva.