It’s concept book fun! Otto the Cat wakes up and wants to know why everything is so gray. Thank goodness Leon the chameleon is available to take Otto out and about and show him that gray is a color – and that there are so many other colors, too! They explore things that are gray, black, white, yellow, orange, red, pink, blue, green, and brown, showing that all colors are wonderful! Brown chocolate, burgers, and dogs; greenhouses and salads; blues music; there’s so much color in the world. Each spread has a riot of images to look through, with little facts and questions peppered about to prompt thought and discussion. A table of contents at the end guides readers to spreads on their favorite color. A fun choice for concept collections.