Discusses collection development policy as means to express and systematize guidelines for collection building that fulfill three basic functions: the referential, the generative, the rhetorical. Division of policy into subject categories, and use of "collection levels" to rank the collection and collecting effort for each subject are…

Approval plans challenge library boundaries, require consensus on collection development priorities, cooperation among library departments, and a close partnership with the vendor. Few concrete performance standards exist, and effectiveness is difficult to measure. Vendors will play an active role in the evolution of approval plans, though…