Proceedings of the Second International Workshop on the Implementation of Logics Hans de Nivelle, Stephan Schulz (eds.) Keywords: Implementation of Logics, First Order Theorem Proving, Linear Logic, Explicit Substitutions This volume contains the papers that were accepted for presentation at the Second International Workshop on the Implementation of Logics. The workshop took place in Havana, Cuba in December 8th, 2001 in conjunction with the 8th International Conference on Logic for Programming, Artificial Intelligence and Reasoning (LPAR 2001). All contributions were reviewed by an international programm committee, whose names can be found elsewhere in this volume.