Research and experience have shown that job performance aids (JPAs) are a cost‐effective alternative or supplement to training. Based on job and task analysis information, they store essential details on performance in a variety of functional and durable forms for use just before or during task performance. Although most JPAs are in printed (hard copy) form, a series of illustrations or directions on an audio or video tape as well as information on a computer screen are also JPAs when they reduce the amount of information to be remembered, specify what actions to take, and indicate when to take each action. The five basic types of JPAs are procedural guide, worksheet, checklist, decision table and flowchart. Describes each type and provides preparation guidelines, along with examples. Also presents important information on layout and format, including the use of illustrations and how to provide emphasis, as well as on effective writing. A comprehensive four‐step quality control procedure describes how the effectiveness and value of JPAs can be confirmed.