Sketching is a rough outline of your drawing. It helps you get an idea of what you are going to draw. It is done by using drawing pencils. There are many types of drawing pencils, each pencil has a different use. There are H1, H2, H3, and etc. H means hard so if you draw with an H pencil the color will come dark. 1, 2, 3 shows what level of darkness you are using. There are also 1B, 2B, 3B, and etc. B means soft so when you use it the drawing comes out lightly. 1, 2, 3 and etc. are the levels. HB can be used to make dark and light drawing. You can find these pencils in art stores, like Joann's fabrics. If you want to share some of your sketchings please email it to me.