The Digital Encyclopedia of Charles S. Peirce is the first on-line encyclopedia to bring together the most recent work on Peirce, and work inspired by his thought, in several fields of research -- Philosophy, Logic and Mathematics, Psychology, Ethology, Anthropology, Sociology, Communication, Aesthetics, Literature and Art Studies, Theoretical Biology, Philosophy of Science, Cognitive Sciences, Artificial Intelligence. The great advantage of the Encyclopedia's dynamic design is mirrored in its openness and responsiveness to new ideas. Unlike static reference works, it is kept up to date by a group of experts constantly adding new entries and modifying existing ones.