This paper describes the use of Authorware Professional, an icon-based, object-oriented authoring system, to develop courseware and on-line experiments. Notable features include direct editability, facility with many response types, and built-in variables. Shortcomings include the difficulty of learning how to use the program, inability to present stimuli rapidly, the program’s linear development style, weak drawing tools, a lack of scroll bars for text, and some problems in the use of Authorware with other applications. Overall, the package is recommended for users with adequate resources.