Ali Shariati (Persian: علی شريعتی) (born November 23, 1933, died 1977) was an Iranian sociologist and revolutionary, well known and respected for his work in the field of sociology of religion. He is known as one of the most original and influential Iranian social thinkers of the 20th century, and as the ideologue of the Iranian Revolution. Now for the 1st time you can listen to all of his recoreded speeches (over 300 hours) on 4 CDs in mp3 format. Please note that these 4 CDs are in mp3 format. MP3 files can be played back on any home DVD player, your PC's cd/dvd player and on those CD players that are mp3 compatible. So these CDs may not play on your car's CD player unless if your CD player can play mp3 files.