This distributive education performance-based instructional unit on customer services contains six lesson plans, each based on a 55-minute class period. The lesson plans cover the following information: (1) purpose of customer services; (2) types of customer services; (3) the influence customer services has on the store's image; (4) the costs involved in offering different customer services; (5) who ultimately pays for customer services; and (6) types of retail stores and the customer services offered by each type. Each unit includes most of the following elements: information sheets, assignment sheets, transparency masters, key and answer sheets, and teacher reference sheets. A list of terminal and enabling objectives and a pre-assessment instrument and key precede the lesson plans. Optional activities, a bibliography, a post-assessment instrument, and key and unit evaluation are included at the end of the unit. (BM)