SALE ENDED NOVEMBER 5, 2017. To all those who purchased, happy learning! This Halloween get 20% off Boooks and 30% off eeeBooks! Go to the eMastercam store and add products to your cart. On Step 2 of the checkout process, enter promo code Boooks (three ooo’s!) for Print Books and eeeBooks (three eee’s!) for eBooks, then click “Apply Coupon“….