Climbing
Nate Fitch & Ron Funderburke
Sketching the basics by Koos Eissen Roselien Steur (z-lib.org)
KODAK Capture software
Ring
Stephen Baxter
Xeelee (4)
Tetralogue: I'm Right, You're Wrong
Timothy Williamson
Drawing on the Right Side of the Brain: The Definitive, 4th ...
Betty Edwards