Often described as one of Shakespeares problem plays Measure for Measure explores issues of mercy and justice in corrupt Vienna. The Duke makes his strict moralistic deputy Angelo temporary leader of Vienna while he disguises himself as a friar to witness all that ensues. In the comprehensive introduction to this new fullyillustrated Arden edition with commentary and notes from A. R. Braunmuller Robert N. Watson explores the recent increased attention to the play and the shifting judgements of