Digital Guide to Photography 2 (exclusive) - published by John Houck, 2011 6,560 Combinations of a 2 x 2 Grid, Colors: #F9E6DF #D0773B #F3C13A #CFB6A0 #5E6668 #7F96A4 #214A68 #D44328 #FFF8EF. www.johnhouck.com
