Try experimenting with different colours of ballpoint pen to create layers of texture. Light-coloured felt tips can easily pick up darker colours from a drawing surface. This can be avoided by ...

Let’s take a look at the best stylus apps and S Pen apps for Android. The Adobe family has excellent apps for using a stylus. Some of these apps include Adobe Photoshop Sketch, Illustrator Draw ...

An ordinary ballpoint pen is held in a spring-loaded carrier ... which uses Canny edge detection to create an outline drawing, then fills in the empty bits to create bright and dark areas.