Professional Practices highlights the way people in many trades and professions use drawing as an integral part of their work. It shows how they use drawing to help them understand. It helps them think, work out problems or to enable them to communicate ideas and information to other people.
The codes and conventions they use reflect their training in a variety of disciplines. The contributors might use simple sketches or complex technical illustrations, but they could develop ideas, resolve problems and interact with colleagues so effectively in any other way.
More information on The Campaign for Drawing's Resources and the Power Drawing Book series can be found here.