April is School Library Month and this week we also celebrate National Library Week. The Friends of the Knoxville Public Library are hosting their annual Book Sale later this week. Books and movies that have been donated from the community or are being circulated out of library inventory will be available for purchase for $1 each. Proceeds from the sale will go toward materials and programs at the library. The sale will take place Friday from 10am-5pm and Saturday from 10am until noon.