The document discusses principles of instructional design that can be applied when creating digital resources. It outlines several multimedia principles supported by research from Mayer and Clark, including the multimedia principle, which states that people learn better from words and pictures than words alone. The modality and redundancy principles recommend against presenting the same information as both on-screen text and narration due to potential cognitive overload. The coherence principle indicates that irrelevant content should be excluded. The document provides examples and exceptions for applying these principles when designing digital resources.