This book constitutes the refereed proceedings of the 8th International Conference on Logic for Programming, Artificial Intelligence, and Reasoning, LPAR 2001, held in Havana, Cuba, in December 2001. The 40 revised full papers presented together with an invited paper were carefully reviewed and selected from 112 submissions. The book offers topical sections on verification, guarded logic, agents, automated theorem proving, non-classical logics, types, experimental aspects, foundations of logic, CSP and SAT, nonmonotonic reasoning, semantics, termination, knowledge-based systems, analysis of logic programs, databases and knowledge bases, and program analysis and proof planning.