This is by a Sufi Shaykh of the Naqshbandi Order whose line now extends to the US through his khalif, Shaykh Ahmed Abdur Rashid. The book is a concise and focused address to anyone who wants to have an authorized explanation of key questions about Sufism and its meditation practices. In Q & A format, the topics range from the specific to the historical, which includes a brief biography of Sayyid 'Abd al-Bari Shah. The book also includes a brief biography of Shaykh Azad Rasool (written by Shaykh Rashid), a glossary of Arabic words relevant to Sufism as part of the text, several pages of notes in the back to explain concepts and give citations. And there is an appendix of the silsila (chain of authority) of several orders that Shaykh Azad Rasool and Shaykh Rashid are khalifas of. The book is written in a format that is easy to read. Great for students and those just curious. An especially good resource book.