*Keycode 210BOOK is valid through December 12, 2019, at 8:00 a.m. ET, only at Discount is only valid when a minimum of 2 select special-priced books are purchased. Discount is only valid on print versions. Discount excludes downloads and clearance pattern books. Only one keycode can be used per order. Keycodes cannot be combined. No price adjustments on previous purchases. Orders that use keycodes are not eligible for future price adjustments.