Jamal al-Din Abu' I-Faraj 'Abu al-Rahman b. Ali, popularly known as Ibn al-Jauzi, 510 A.H.---- 599 A.H. ( A.D.116 - A.D.1200), was the author of a vast number of works - theological, historical, biographical, medical, philological, and entertaining - of which several have been printed in recent times. He was famous as a preacher and the traveller Ibn Jubair gives an enthusiastic account of two of his sermons heard in Baghdad.
This work is directed against the sins of contemporary society, which it traces to 'Delusion of the Devil.' It's title (Talbis Iblis) had been previously selected by Imam Ghazali for a work of similar scope which he contemplated. Imam Ibn Jauzi, though he handles Imam Ghazali severely, adopted it. By far, the greater part of the book is criticism or censure of extreme Sufis.
It mainly discusses extreme Sufis, however it also discusses other sects such as the Khaarijites, Shi'ah and the Baatineeyah.