Drawing Techniques "There is no science without fancy and no art without facts." - Vladimir Nabokov  Like any art form, there are endless possibilities when it comes to the technique and execution of drawing and sketching. However, there are a few methods that cannot be ignored in the practice, especially when striving to create a realistic image. These methods build off from the previously discussed topic of the light spectrum in that they are, essentially, the gateway into drawing the 3D world. Here are a few examples:  1) Hatching  2) Cross-Hatching  3) Back-and-Forth  4) Scumbling 1. 2.3.4. all images obtained from: http://howtodraw.pencilportraitsbyloupemberton.co.uk/step-by-step-drawing-tutorial/pencil-drawing-techniques/basic-pencil-drawing-techniques/ Intro