This collection investigates the fundamental nature of human knowledge and the persistent challenge posed by philosophical scepticism. Barry Stroud, a prominent figure in contemporary epistemology, compiles his most significant essays to examine how philosophical theories attempt to account for our understanding of the world. He argues that the problem of scepticism is not merely an academic exercise but a central component in defining the scope and limits of human knowledge itself.

Experts recognize this volume as a foundational collection for those studying the intersection of epistemology and scepticism. Readers frequently note the rigorous analytical density of Stroud's prose, which serves as a primary resource for advanced philosophical research.