Since its inception in 1969, the National Assessment of Educational Progress (NAEP) has been the nation's leading indicator of what American students know and can do. The focus of this chapter is on how NAEP, as it exists today, may be useful to educators, in particular four aspects of NAEP that may be of wide interest and use. This chapter concludes with a discussion of planned or possible enhancements to NAEP that could further increase its usefulness to educators. (Contains 12 references and 2 tables.) (GCP)