The author first talked about the spread of Islam in Iran and its results. Then he talked about the spread of Islam in Turkestan, talking about Turkey before the Arab conquests, the Arab conquests in Turkestan, etc. Then he moved on to talk about the spread of Islam in northern India, talking about the conditions of India before the Arab conquest, the Arab conquests in Sindh and Multan, and then about Indians and Islamic civilization.

The book Nuclear Radiation - Its Benefits and Harms is one of the most important books on the subject of nuclear radiation, as this book discusses the most important benefits that result from nuclear radiation, especially since there are many serious harms caused by nuclear radiation.