This document discusses key aspects of quality as they relate to learning resources and learning objects. It begins with definitions of quality from different perspectives. It then examines various prerequisites of quality learning resources, including content quality, learning goal alignment, feedback and adaptation, motivation, presentation design, interaction usability, accessibility, reusability, and standards compliance. Each of these aspects is discussed in one or more paragraphs. The document also introduces the Learning Object Review Instrument (LORI) as a tool for evaluating learning objects. Finally, it addresses the importance of metadata quality for discoverability and reuse of learning objects.