This report is a survey of teaching-machine programs and programming techniques as they existed at the end of 1960. Originally, the intention was to sample literally every program in existence. It was soon recognized that this would be impossible. The programmed learning field is expanding so rapidly that an exhaustive sample is out of date by the time it can be published. However, 81 programs that are represented in the Appendix are believed to constitute over 75 per cent of the total number available. The object of the report is to present a cross-section of this field for the many individuals who have a need to know about programming and programs, but who are not working directly in the field. It is an interpretative and descriptive report rather than a survey of the research literature or of popular research issues. It describes the type of programs now available in terms of content and educational level. It defines common terms in the field, and summarizes programming rules and techniques. It presents an outline of factors which suggest the complexity of the educational context in which programmed learning must find a place; and, finally, it presents samples of 81 current programs. (Author).