The great writer Anis Mansour reviewed this work, whose author, who is American, was able to combine the biography of a hundred human beings who contributed strongly to human history during their lives and their influence continued even after their death. His choice of these great people was based on the actions they presented and the effects they left, and although the author is not a Muslim and does not know whether he was a Christian, a Jew or an atheist, he reviewed the greats throughout history, and he found that Muhammad, may God bless him and grant him peace, is the greatest and deepest impact.