Bequests can be made in the form of cash or property or a percentage of the remainder of an estate. The latter allows more flexibility in planning.
The following language is an effective way to make bequests to the Shippensburg Public Library
I hereby give, devise and bequeath to the Trustees of the Shippensburg Public Library, a nonprofit corporation, organized and operating under the laws of the Commonwealth of Pennsylvania, the sum of $____ or "the rest, residue and remainder of my estate: to be used for the general purposes of the Shippensburg Public Library "or for a particular program of your choosing".