Mahboob Illahi, the author, graduated from the Royal Naval College Dartmouth, England in 1962, and served as a naval officer in the Pakistan Navy for about 10 years. He took part in Dwarka Operations, during the 1965 Indo-Pakistan War. After release from the navy, he went to Iran, and worked in Bank Saderat of Iran. He later taught English to technicians in the Iranian Air Force, Army Aviation, and the Land Forces of the Shah of Iran. After seeing the senseless killings by suicide bombers in previously peaceful 1970s Pakistan, he began researching the factors behind terrorism, and concluded after a few years' study that the root cause of terrorism was the intolerant ideology of the Saudi Salafi religion which considered Shia and Sufi Muslims who venerated the tombs of the Prophets, and Imams of Shia Muslims, to be non-Muslims who deserved to be killed. He was astounded by his findings and ended up writing "Doctrine of Terror" which is being re-published by Bookwhip.com and will soon be available. He saw the 1979 Iranian Islamic Revolution firsthand, which consisted of events, before and after Imam Khomeini, the revolutionary leader of Iran's arrival from France. The extraordinary events before and after the revolution-including the eight-year Iran/Iraq war, imposed on Iran in 1980, and the biased, cruel attitude of the regional and world powers against Iran, during and after the war, motivated him to write "Citadel of Shia Imams" which is now available from online retailers, like Amazon, Barnes & Noble", and the Publisher Friesenpress.