This book revives and reinterprets a persistent intuition running through much of the classical work: that the unitary appearance of Obligatory Control into complements conceals an underlying duality of structure and mechanism. Idan Landau argues that control complements divide into two types: In attitude contexts, control is established by logophoric anchoring, while non-attitude contexts it boils down to predication. This book is unique in being firmly grounded in both the formal semantic and the syntactic studies of control, offering an integrated view that will appeal to scholars in both areas.