This book deals with medical science sources from around the world and transmits medicine from them to Islamic civilization, including Alexandria, ancient Iran, India, etc. Dr. Najmabadi mentions great physicians such as Galen and examines important centers such as Jundishapur. The author deals with medicine in the period of ignorance(before islam) in the second part and also mentions the names and biographies of many Arab physicians before and after Islam. In later sections he deals with the translation movement in Islamic civilization. In the fifth part the author mentions the story of the greatest Iranian physicians , including Raben Tabari, Razi, Ahwazi, Ibn Sina and others. In the eighth section he gives a detailed account of the hospitals of Iran and the east of Islamic civilization

Mahmood NajmAbadi was born in Tehran in the 6th solar year. Najmabadi entered medical school at age 6. Jamabadi also became a first-year student at the medical school, after graduating from high school and went to Quchan in the solar year, staying in Quchan and the blacksmiths for four years, where he was considered a legal sage and conscientious objector. He then came to Sabzevar in 2007 and became the head of the Heshmati Hospital. He came to Tehran after spending some time in Sabzevar and worked at the Pasteur Institute. The president of the Pasteur Institute at this time was a Frenchman who was very much in favor of Jean Frandel. His work at the Pasteur Institute continued until the British led the institute. After working at the Pasteur Institute, he practiced medicine at other hospitals in Tehran such as Razi Hospital and then headed the Rescue and Logman al-Dawlah Hospitals (Logman Hakim today) and was active in such positions until his retirement. He has taught for many years in the medical, health and Islamic schools of Islam, and has been the head of the Department of Iraqi and Health Research, as well as the secretary general of the Iranian Society of History of Science and Medicine. In addition to his many writings in Farsi and French, he has a first and second degree medal of appreciation from Iran and a knight's (RA) Letter from France, and is also an official member of the French Medical History Association and the International Medical History Association in Paris. is considered.