This document discusses the classification and selection of instructional media. It defines instructional media as materials and means that instructors can use to teach students and help them achieve learning objectives. Instructional media is classified according to the sensory modality it engages, whether it is projected or not, literacy requirements, dimensions, pacing, accessibility, cost, and electronic requirements. Key principles for selecting instructional media include appropriateness for objectives, authenticity, interest, organization, and cost effectiveness. Factors to consider include relevance, suitability, accuracy, learner participation, feedback, appeal, availability, ease of use, environment, and technical quality.