The West End Library Friends' used book sale is scheduled for Saturday, April 16, at the West End Library at 1101 24th St. N.W. (24th & L streets). The hours are 10:30 a.m. to 3:30 p.m.This sale of used and contributed books will offer an estimated 7,000 titles, including lots of mysteries, romance and sci-fi! Prices range from 25 cents to $3 for the majority of those on sale. Special volumes will be appropriately priced. DVDs and an abundance of video tapes and CDs are also available.