The fields of logic, linguistics and computer science are intimately related, and modern research has uncovered a wide range of connections. This collection focuses on the work that is based on the unifying concept of information. Some of the papers contribute to a general theory of information, others tackle specific problems using an information-based approach. All the papers were presented at the conference on Information-based Approaches to Logic, Language and Computation held at St. Mary's College, Moraga, California in June 1994. The conference is a direct successor of three conferences on Situation Theory and its Applications.