This book introduces an important chapter of Polish 20th century philosophy, by analyzing the studies that contributed to value theory; i.e. the studies of Kazimierz Twardowski, Tadeusz Czezowski, Tadeusz Kotarbinski, Wladyslaw Tatarkiewicz, Roman Ingarden, Henryk Elzenberg, Maria Ossowska, and Józef Maria Bochenski.
Czeslaw Porebski, Ph.D (1975), Jagiellonian University, Cracow, Poland, is Professor Em. of Philosophy. Author of monographs, translations, and many articles on ethics, political and social philosophy, including Social Contract: Renaissance of an Idea (1999, in Polish) and Lohnt es sich, moralish zu sein? (2000).