Reserve Collection The Reserve Collection is highlighted on this map of the First Floor. This area houses class reserve items and materials that are in high demand or at high risk. To use them you must present a valid RIT ID card. The materials must be checked out on an ID even if they are used only in the library. Some are hourly use only and do not circulate. There are also limits on how many items you may check out at one time and heavy fines for overdue items due to their high demand. A weekly printout of all material on class reserve is at the Reserve Desk. All items on reserve can also be found in Einstein. Some course material is available electronically - try the Library's new Electronic Course Reserves section of the Web.