Introduction
The compendium is based on material developed by:
- Project Gutenberg’s The Practice and Science of Drawing
- Jonathan Ingram and the Online Distributed Proofreading Team
- Stan Prokopenko (http://www.stanprokopenko.com/ or http://www.proko.com)
- Royal Talens
- Art Factory
- Andrew Loomis’ Drawing the Head and Hands
- John Asaro
- Ben Rathbone
- David Gray
- Sketchfab
- Inge Tang
Porsgrunn 01.03.2013
Inge Tang
