This volume investigates the hierarchical organization of the inflectional field and the left periphery of clauses within the framework of generative grammar. Edited by Luigi Rizzi, a prominent figure in syntactic theory, the text compiles research from various scholars to map the functional categories of IP and CP. The contributors utilize comparative data to refine the cartographic approach to syntax, arguing for a highly articulated structure of the clause that accounts for cross-linguistic variation.

Experts in the field recognize this volume as a significant contribution to the cartographic program in generative syntax. Readers frequently note the high level of academic density, making it a specialized resource intended primarily for professional linguists and advanced graduate students.