An excessive number of non-fiction books were shelved incorrectly in an elementary school media center where, due to budget cuts, the media specialist depended on fifth grade student volunteers for book shelving assistance. A 12-week training program was developed for the fifth grade media volunteers, who met once a week for 40 minutes. The objective of the program was to enable students to improve their shelving skills as demonstrated by a 10% increase in correctly shelved books. The training consisted of student experiences in organizational thinking and applications of the Dewey Decimal System in activities such as creation of Dewey Decimal collage posters, participation in an "Adopt-a-Shelf" program requiring student responsibility for a particular shelf, and development of a student media volunteer handbook. A second project goal was to increase the interest of fourth graders in becoming media aides. By the end of the project period, the fifth grade media aides had reduced shelving errors more than 10%, the media center was visited more often by volunteers, and the fourth graders, who were aware of special activities surrounding the fifth graders' involvement, showed increased interest in becoming media aides. Appendices include forms, worksheets, the survey used with fourth graders, bulletin board and bookmark designs, shelf labels, and a shelf adoption certificate. (Contains 51 references.) (Author/KRN)