ABSTRACTIn this paper, we describe a comprehensive list of attributes of instructional materials. The list is of particular value for two reasons. First, it is drawn from the instructional design literature and represents a consolidation of recommendations constructed by or attributed to experts for the evaluation and revision of any type of instructional material. Second, it has been validated and found reliable through a series of studies during the past five years. We provide suggestions for how researchers and academics might use the attributes to advance knowledge in the field and how instructional designers, consultants and instructors might use the attributes to enhance their practice.