Hatching and Cross-Hatching - using line to create value

For more drawing tutorials like this one visit https://www.udemy.com/essential-drawing/?couponCode=Darth+Drawing and get 42% off of the retail price. This is a drawing lesson aimed at using line to create value on both flat and curved surfaces. The techniques covered are hatching and cross-hatching. These processes are typically associated with 'pen and ink' and intaglio printmaking.