Working with cartographic materials requires that the map librarian become familiar with conservation and preservation methods for a wide variety of materials--globes, atlases, imagery (black and white; color), plastic models, maps, sections, views, diagrams, and so on. The map librarian must recognize that conservation of cartographic materials depends upon correct methods of handling, storage, and display, and upon correct atmospheric controls from the area in which the collection as a whole is kept. When a cartographic item needs repair, the map librarian needs to look at it carefully and determine if such repair is within the technical abilities of the persons available to do the work, and if the item is of sufficient value, that the work is worth doing; that is, would it be sufficient to preserve the information by microforming the item, or does the actual item have to be preserved? The end result of all this juggling of concepts should be a map room that can provide the cartographic materials that users need. The appendix lists addresses of vendors for equipment and supplies for conservation of cartographic materials.