Continue Shopping Ruby Notes for Professionals book has been added to your cart. Product Price Quantity Subtotal × Global Optimization Algorithms €9.99 Global Optimization Algorithms quantity €9.99 × Tutorial to contribute to the CPython project (Python) €14.00 Tutorial to contribute to the CPython project (Python) quantity €14.00 × Ruby Notes for Professionals book €14.00 Ruby Notes for Professionals book quantity €14.00 Coupon: Apply coupon Update cart Cart totals Subtotal €37.99 Total €37.99 Proceed to checkout
