This document, one of 12 guides that have been developed to facilitate evaluation by and for local education agency (LEA) personnel in Illinois, covers the evaluation of instructional materials, both print and audiovisual. The activity is presented in three parts. The first part is an inventory of instructional materials that are currently owned by the LEA. The second is an assessment of the adequacy of these materials, and the third part involves the use of results from both the inventory and assessment. The guide has been designed to aid the person who has responsibility for leading this particular activity (in this case, probably a librarian or media specialist). It includes three sections. The first section on preliminary considerations contains a brief explanation of this evaluation activity and the necessary steps to prepare for the evaluation undertaking. Suggestions are included for holding a staff meeting to discuss the activity. The second section of the guide is a procedure/task breakdown, which outlines suggested tasks for conducting the evaluation activity. The third section of this guide contains supporting documents, including information handouts, example documents, and references. (KC)