Judith T. Marcus & Zoltan Tar 
Foundations of the Frankfurt School of Social Research [PDF ebook] 

This interdisciplinary volume provides the most comprehensive evaluation, to date, of the merits and problems of Critical Theory of the Frankfurt School. Outstanding repersentatives of several academic disciplines assess from opposite intellectual and political positions the achievements and shortcomings of the social theory that emerged from this school of thought. The volume also includes several newly translated but previously inaccessible essays by leading critical theorists such as Georg Lukacs and Jurgen Habermas.