Indigo Animal: The Trilogy
Rue Harrison
Over 360 illustrations. 
A book that slowly emerged from the author's creative imagination, this is the illustrated story of a unique being's quest to study the essential nature of things (in this case, through attending the Lawn Statuary Research Institute) and "explore streets that lie beyond the known territory." Both humor and quiet pondering are part of this work, and the graphics reveal hidden layers of the characters and their surroundings.