This collection investigates the core logical and ontological problems within Plato's later dialogues, specifically focusing on the theory of Forms. R. E. Allen, a prominent scholar of ancient philosophy, compiles a series of essays that examine the development and potential inconsistencies in Platonic thought. The work utilizes rigorous textual analysis to address how Plato navigated the transition from his middle period to the more critical inquiries found in works like the Parmenides and the Sophist.

Experts regard this volume as a significant contribution to the study of Platonic metaphysics, often citing it for its precise engagement with complex logical problems. Readers frequently note the academic density of the prose, which is intended for students and scholars of ancient philosophy.