Every museum should appraise its handling techniques, inquire into its procedures, materials, and equipment and provide for the re-education of its own professionals. The rules are excerpts from a guidebook used at the Los Angeles County Museum of Art, Los Angeles, California, and cover the following categories: general handling, paintings, sculptures, furniture, watercolors, prints and drawings, glassware, enamelware, ceramics, rugs, tapestries, textiles and costumes, books, oriental scrolls and screens, silver and other metal objects.