Abstract: MetaPost is a great tool for line art. We walk through creating a rate one-to-five graphic with it, highlighting some of its advantages over a mouse-driven graphics tool..
Jim Hefferon is a frequent contributor to PracTeX. He teaches Mathematics at Saint Michael's College in Colchester Vermont, USA. He runs http://az.ctan.org and has been using TeX and friends for twenty years, including authoring two textbooks that are freely available with TeX source. You can reach him at jhefferon at smcvt dot edu.