Following the direction established by James Muilenberg and others, author Chris Franke argues that the most fruitful approach to chapters 46–48 in Deutero-Isaiah is to read them with a literary dimension in mind. Franke perceives a highly creative, unique hand in the creation of this portion of Isaiah and believes that the material in these chapters consists of unified literary works. She uses specific criteria to test and validate this hypothesis. She also examines the nature and character of Hebrew poetry in these chapters, considering it within the context of contemporary Hebrew poetry studies.