Books like Transparent Watercolor Wheel
Jim Kosvanec
Transparent Watercolor Wheel is 144 pages, about 2 hours 38 minutes at 250 words a minute.
12 books to read next
How long each takes
Watercolor Color 1.3 h 
Understanding Color 2.6 h 
Watercolor Basics 2.3 h 
The Art of Color 2.9 h 
Color and Light 4.1 h 
The Elements of Color 1.8 h 
Blue and Yellow Don't Make Green 3.7 h 
Color Theory 2.0 h 
Botanical Illustration 2.4 h 
Color Harmony 2 2.9 h 
Watercolor 2.6 h 
Color Choices 2.6 h Bar height shows length. Estimated at 250 words a minute.