Representational systems such as language, mind or brain, exhibit a structure that is widely assumed to be compositional, i.e., the semantic value of complex representations is determined by the semantic values of its parts. Dating back to the late nineteenth century, the principle of compositionality has recently regained wide attention. Since the way the principle has been dealt with differs across disciplines, the aim of these two volumes is to conjoin the diverging approaches. The editors have assembled a collection of original essays that cover the topic of compositionality from virtually all perspectives of interest in the contemporary debate. The well chosen international list of authors includes psychologists, neuroscientists, computer scientists, linguists and philosophers, among them: D. Bonnais; Johannes Brandl; Marc Breuer; David Byrd; Daniel Cohnitz; Malte Dahlgr3n; Reinaldo Elugardo; Tim Fernando; Kenneth Gemes; Verena Gottschling; Pierre Jacob; Hannes Leitgeb; Menno Lievers; Alda Mari; Jaume Mateu; Albert Newen; Jaroslav Peregrin; Ahti-Veikko Pietarinen; Kenneth Presting; Oleg Prosorov; Gerhard Schurz; Finn Spicer; and Markus Werning.

Markus Werning, Edouard Machery, and Gerhard Schurz are professors of philosophy at the Heinrich-Heine-University at Duesseldorf, Germany.