This book provides a simple but precise framework for describing complex predicates and related constructions, and applies it principally to the analysis of complex predicates in Romance, and certain serial verb constructions in Tariana and Miskitu. The authors argue for replacing the projection architecture of LFG with a notion of differential information spreading within a unified feature structure. Another important feature is the use of the conception of argument-structure in Chris Manning's Ergativity to facilitate the description of how complex predicates are assembled. In both of these aspects the result is a framework that preserves the descriptive parsimony of LFG while taking on key ideas from HPSG.