Originally published in 1977, this book reports the proceedings of a conference sponsored by the Navy Personnel Research and Development Center. The one common thread running through all of the formal papers and dialogue was that the knowledge a person already possesses is the principal determiner of what that individual can learn from an educational experience. These questions were addressed: How is knowledge organized? How does knowledge develop? How is knowledge retrieved and used? What instructional techniques promise to facilitate the acquisition of new knowledge? The kinds of answers provided are characterized by their as well as by their specificity. Accordingly, the volume should be of interest to both the generalist and the specialist.