Two pieces of literature by Thomas A. Wills are contained in this document: (1) A complete programed text in law, "A Programmed Text in Criminal Law," and (2) a study comparing instruction with versus instruction without the use of programed texts, "Development and Evaluation of a Programed Text in Criminal Law." In the latter, six control and six experimental groups were used to test the hypothesis that students can acquire a basic working knowledge of the rules of law by independent, unsupervised study of a programed text. The results supported the hypothesis. It was concluded that the acquisition and application of complex abstract material can be taught efficiently with programed material. (HW)