The content of textbooks teaching the use of a computer was studied. An important component of skill learning, choosing the right procedure at the right time, is difficult in computer education because the connection between real-world goals and the generic procedures described in a manual is often obscure. Furthermore, it is difficult to tell which of several similar procedures is best for a particular situation. Various types of advice about choosing the correct procedure were investigated. College students and staff members read one of four versions of a manual for a computer game called "Box World." A Dandylion computer was used. Three versions contained advice about when to use particular game procedures. The advice was either stated as a simple verbal rule or elaborated with a concept example or a task example. The fourth version contained no advice. Subjects then performed three tasks: recall; recognition of correct versus incorrect applications of the advice; and decision making and problem solving. Subjects who received advice followed it to select a procedure; however, so did subjects receiving no advice. The examples helped subjects identify correct applications of the advice, but did not increase adherence to the advice during problem solving. (Author/GDC)