Fourth in a series of six monographs on the use of new technologies in the instruction of learning disabled (LD) students, this paper explores issues related to the evaluation and selection of instructional software for LD students. Topics discussed include the following: (1) criteria for instructionally useful software (e.g., flexibility and unique display capabilities); (2) rationale for improved selection processes; (3) factors influencing selection (e.g., nature of documentation that accompanies the program); (4) producers of software; (5) evaluation forms and review procedures. A final section discusses elements of a comprehensive evaluation and selection instrument, including types of information to be gathered (vendor/program data, program description, instructional design features, and appropriate applications). (JW)