1Color has captivated artists, designers, scientists, and philosophers for centuries. From early principles of color theory to color wheels, great thinkers study and use color to explain and illustrate their ideas. Color is a sketchbook with thick, blank 140 gsm ( 95 lbs.) pages and a full-color appendix with striking vintage illustrations from rare books on color theory. The textured cover features a tipped-in color wheel. Inspired and inspiring, this journal is the perfect jumping off point for creative expression.