*Use code 15OFF at checkout to apply the “offer”, 15% off. Offer does not apply to shipping or taxes, and cannot be applied to magazine subscriptions or past purchases. If purchasing a full continuity series, offer only applies to first book in the series. Offer is not valid with other select promotions, offers, discounts or coupon codes (i.e. “Free Book offers”). Valid for a limited time only. Guideposts reserves the right to refuse, change, modify or cancel this offer at anytime.