More than 250,000 books, audio books, magazines, music, and DVD's will be up for sale at the Spring Book Sale for the Boise Library.  The items are at the warehouse across the street from the Library and the sale opens Thursday, but there is a sneak preview tonight (Wednesday) for Friends of the Boise Library.  You can become a member of the Friends for just $10 at the door.  Tonight the hours are 4 pm to 7 pm.  Thursday and Friday are 9 am to 7 pm, Saturday from 9 am to 5 pm and Sunday which is the half-price day from 10 am to 5 pm.  This is also a bag sale where most items can be put in a bag and the cost is just $9.