Cart Product Price Quantity Subtotal 21st Century Educational Technology Primer $24.99 21st Century Educational Technology Primer quantity $24.99 Competitive Programming Guide: Learning and Enhancing Algorithms with Contests $24.99 Competitive Programming Guide: Learning and Enhancing Algorithms with Contests quantity $24.99 Python-Based Data Structures and Algorithms $24.99 Python-Based Data Structures and Algorithms quantity $24.99 Coupon: Apply coupon Update cart Cart totals Subtotal $74.97 Total $74.97 Proceed to checkout