Illustrator Jake Parker created the Inktober Challenge in 2009 as a means to improve skills and to develop good drawing habits. The Challenge - do one ink drawing every day for the month of October. Some artists may do every other day, some weekly. Inktober has grown to include artists all over the world.
There are some rules:
1. Do an ink drawing every day. You can make a pencil sketch first.
2. Post the drawing.
3. Hashtag it with #inktober.