The Annual Spring Book Sale will take place at the Chester County Library in Exton this weekend.

If you’ve already read the books you bought at the Unionville High sale, here’s another opportunity to grab some inexpensive enlightenment. The Friends of the Chester County Library are holding their annual Spring Book Sale Friday, Saturday and Sunday on the second floor of the Chester County Library in Exton.

More than 30,000 books in a variety of subjects, from the sciences to the humanities to fiction and poetry will be available for purchase at bargain prices along with current and out-of-print hardback and paperback novels, first editions, biographies, history and children’s books, cook books, music and movie CDs, DVDs, and much more.

A preview night for members of the Friends of the Chester County Library will be held Friday from 6 to 8:30 p.m.; non-members wishing to attend the members-only preview may purchase a membership – $15 for an individual and $20 per household – at the door.

The sale is open to the public starting on Saturday from 9:30 a.m. to 4 p.m. Sunday is Bag Sale Day: From 1 to 4 p.m. shoppers are welcome to fill a grocery bag for $5. Only cash or checks will be accepted, and no strollers will be permitted.

The Chester County Library is located at 450 Exton Square Parkway, Exton,  19341. If you have questions about Chester County Library, visit www.ccls.org/ccl or call 610-280-2600 for more information.