The Friends of the Alexander Family Library in Hummelstown will hold a spring book sale on the second floor at the library. The book sale will be open on Thursday, March 31, from 10 a.m. to 6:30 pm.; Friday, April 1, from 10 a.m. to 4:30 p.m.; and Saturday, April 2, from 10 a.m. to 1:30 p.m.

The library is located at 200 W. Second St., Hummelstown.