The six primary and secondary colors are the subjects of Hoban's latest thematic photo album, and they stand out here in smashing clarity. There's a spread of green apples and a facing one of oranges, there's a yellow leaf, a pumpkin, and a surprisingly sliced Watermelon—but mostly these sharp, unadulterated colors occur in manmade objects, and it's a pleasure to report that plastic garbage bags, sunglasses, and flower pots have never looked so good. There's also much painted metal—a hydrant, a pipe, a rainbow of new cars, and just one confusing jumble of yellow street equipment—and, throughout, enough variety in scale and pattern and subject to keep viewers alert and responsive.