The book Are Ahmadis Not True Muslims? is an English rendering of the booklet entitled Kiya Ahmadi Sachay Musalman Nahin?, which was written in response to Qadianion aur Dusrei Kafiron kei Darmiyan Farq [Difference between Qadianis and Other Disbelievers], which is based on a speech given by Maulvi Muhammad Yusuf Ludhianavi which he delivered in Shuyukh Mosque, Dubai, on October 1, 1985. Maulavi Ludhianavi starts with a pre-conceived notion that Ahmadis are kafirs [disbelievers] and goes on to list his notions about the difference between Ahmadis and other kafirs. Our response shows very clearly that the arguments of Yousuf Ludhianavi are completely misleading. We also demonstrate that the so-called ulema like Ludhianavi have been using such deceptive and shameful tactics throughout the history of Islam against highly revered personalities of Islam. This book is a refutation of the ideas of Maulavi Yusuf Ludhianavi and other ulema like him.