The Friends of the Castro Valley Library will hold a two day book sale Saturday and Sunday, June 25 and 26 at the Castro Valley Library, 3600 Norbridge Ave., Castro Valley. The sale will include adult fiction and mystery books, DVDs and a large selection of children’s books. There will also be a table of specially priced books, including antiquarian volumes and books signed by the author. No non-fiction will be offered at this sale. Saturday hours are 10 to 3. Sunday from 1 to 4 will feature a Bag Sale, only $4 for a bag of books! All proceeds support library programs. Masks will be required