Radical Islam and the Revival of Medieval Theology, by Daniel Lav

(First paragraph) Radical Islam and the Revival of Medieval Theology by Daniel Lav is in one part a study of the debate in early Islam over the issue of irjāʾ, which came to be understood as the controversy over what constitutes belief and whether it is to be deferred to God or to hu-mans. In another part, Radical Islam is a study of modern Salafism (its militant and non-militant manifestations).