The power of computers has increased so much over the past few years that even personal computers are now practical platforms for training methods using graphics, sound, and animation. The use of multimedia in training has widespread applicability. However, in this chapter we focus on the use of multimedia to train people how to use software.Changes in available hardware have made multi-media-based training practical at a time when changes in software have made it a p pear necessary. Graphical user interfaces (GUIs; e.g., the Macintosh o p erating system, Microsoft Windows, and related software) are typically easier for new users to learn than command-based systems (Temple, Barker, & Sloane, 1990). However, their widespread adoption places new demands on the traditional process of using text-based instructions to train people to use software applications. Command-based software can be taught well with simple text instructions because the user interacts with the software simply by entering a defined sequence of commands for each operation performed. However, GUIs require multiple operations at different locations on the screen as well as choices from specific menus. Because users interact with graphical objects, it is help ful to demonstrate what the different objects look like, where they are located, and so forth. Thus, presenting training information visually seems more appropriate for teaching the use of these systems. Users can see how to perform procedures and can immediately observe the 28 1