The emergence of Islam has in recent years become a matter of heated debate, mainly because Islamic historiography is a battle-field of contradictory versions of the past. In this second collection of studies, several of which appear here for the first time, Michael Lecker distances himself from the clash of theories, concentrating instead on several basic issues. They all belong to the preparatory work that still remains to be done on the social and economic environment in which Islam emerged. The volume includes the following sections: Arabia on the Eve of Islam; Muhammad and his Companions; and Arabian Tribes in Pre- and Early Islamic Arabia. The third section includes much extended and fully-documented versions of nine Encyclopaedia of Islam articles dealing with Arabian tribes and tribal society.