The Little Green Book is a collection of fatawah handed down by the most prominent and arguably one of the most influential Muslim clerics in modern history; the Grand Ayatollah Seyyed Ruhollah Mosavi Khomeini, commonly known as the Ayatollah Khomeini. Fatawah (the plural of fatwah) are Islamic religious decrees sent down by Muslim religious leaders. Since Islam demands that Muslims abide by Sharia - Islamic law as individuals and as a society, these fatawah are not simply religious insights or advice. They are legal pronouncements, and define the law of the land in an Islamic country. In his unrivaled role as Iran's Supreme Leader and the highest-ranking cleric for Shi'a Muslims, the Ayatollah Khomeini's fatawah guided the lives of more Shi'a Muslims than did any other Islamic leader throughout history
About the Author: Sayyid Ruhollah Musavi Khomeini, 24 September 1902 - 3 June 1989), known in the Western world as Ayatollah Khomeini, was an Iranian Shia Muslim religious leader, philosopher, revolutionary, and politician. He was the founder of the Islamic Republic of Iran and the leader of the 1979 Iranian Revolution that saw the overthrow of the Pahlavi monarchy and Mohammad Reza Pahlavi, the last Shah of Iran. Following the revolution, Khomeini became the country's Supreme Leader, a position created in the constitution of the Islamic Republic as the highest-ranking political and religious authority of the nation, which he held until his death. He was succeeded by Ali Khamenei on 4 June 1989. Khomeini was a marja ("source of emulation") in Twelver Shia Islam, a Mujtahid or faqih (an expert in Islamic law) and author of more than 40 books, but he is primarily known for his political activities. He spent more than 15 years in exile for his opposition to the last Shah. In his writings and preachings he expanded the theory of velayat-e faqih, the "Guardianship of the Islamic Jurist (clerical authority)", to include theocratic political rule by Islamic jurists. This principle (though not known to the wider public before the revolution), was appended to the new Iranian constitution after being put to a referendum. According to New York Times, Khomeini called democracy the equivalent of prostitution. Whether Khomeini's ideas are compatible with democracy and whether he intended the Islamic Republic to be democratic is disputed. He was named Man of the Year in 1979 by American news magazine TIME for his international influence, and has been described as the "virtual face of Shia Islam in Western popular culture".Khomeini was known for his support of the hostage takers during the Iran hostage crisis, his fatwa calling for the murder of British Indian novelist Salman Rushdie, and for referring to the United States as the "Great Satan" and Soviet Union as the "Lesser Satan."Khomeini has been criticized for these acts and for human rights violations of Iranians (including his ordering of execution of thousands of political prisoners, war criminals and prisoners of the Iran-Iraq War). Khomeini held the title of Grand Ayatollah and is officially known as Imam Khomeini inside Iran and by his supporters internationally. He is generally referred to as Ayatollah Khomeini by others. In Iran, his gold-domed tomb in Tehran's Behesht-e Zahra cemetery has become a shrine for his supporters.