In this volume we have placed three essays concerning the history of philosophy in general before the thematic focus. These general essays comprise a new discussion of scepticism, an analysis of logical atomism, and a discussion of the concept of number. The thematic focus concerning the practical syllosism was organzized by our colleague Christof Rapp, Berlin. They have succeeded in putting together an impressive sequence of interlocking essays about a perennially important topic from ancient philosophy. The authors: Klaus Corncilius, Yiftach J.H. Fehige, Wolfgang Gombocz & Alessandro Salice, Paula Gottlieb, Jean-Baptiste Gourinat, Jörg Hardy, Vojtech Kolman, Holger Leerhoff, Pierre Marie Morel, Anselm Müller, Anthony W. Price, Christof Rapp & Philipp Brüllmann, Matthew Tugby, Sven Walter, Ron Wilburn.