This booklet, with a physical workout "get-in-shape" theme, is intended to stimulate cooperation between public and school libraries in providing services to elementary and secondary level students. The potential benefits of cooperation are cited, including sharing ideas and materials; reaching a wider audience by sharing publicity for activities; saving time and effort by sharing planning responsibilities; saving money by sharing expensive resources; creating a positive image of librarians working together; and increasing community awareness and perhaps translating that awareness into greater support at budget time. Following a brief discussion of benefits and possible hurdles, the workout book suggests 20 specific programs (10 for public librarians and 10 for school librarians) that have been successfully tested by the librarians who submitted them. These activities include: a survey of teen interests; a videotape to promote interest in a summer reading program; introducing parents and teachers to books suitable for reading aloud; a library tour to introduce a school library club to the organization and functions of a public library; an introduction for middle and junior high students to folktales and storytelling skills; and a public library breakfast for school librarians and supervisors. (THC)