The correspondence between Meinong and Kazimierz Twardowski highlights the relationship between two philosophers who influenced the history of philosophy and psychology in Austria and Poland. The two correspondents discuss, among other things, their epistemological approach and the university politics of their times. In addition, there is an extensive introduction that places the correspondence in its proper historical and philosophical context.

This long-awaited critical edition of the 277-page unpublished manuscript of notes oflectures given by Twardowski at the University of Vienna in 1894/95 provides a detailed overview of 19th-century philosophical logic and opens a new line of interpretation of Twardowski s work giving great importance to his Nachlass."