The progress of several projects defining and measuring adult literacy is reported in this publication of the National Reading Center. A summary description of the basic approach of the project is given, rather than a digest of findings. Among the studies reported on are the National Assessment of Educational Progress (NAEP) in reading, the Adult Performance Level Study of life skills and requirements, the Louis Harris study of real-life related reading objectives, and the Educational Testing Service study of adult reading behavior. (RS) Aspect of National Assessment (NAEP) dealt with in this document: Results (Baseline).