Hello. Due to strong customer support over the past year, I'm able to offer a reduced sale price on all books and the Hi Power Disassembly Guide through Memorial Day, May 31st. On June 1st, prices go back to the regular amount. If interested, this link shows the regular and current sale prices for each item: http://www.hipowersandhandguns.com/Holiday Sale.htm A full description of each book as well as the Disasembly Guide can be found by clicking on "Products." Ordering instructions are there as well. Best.