Gardner does some clever turns with very simple designs. Each square right-hand page contains a stark two-color composition--two doughnuts, a diagonal wave, a cane handle, and other just as simple but harder to describe. The trick is that each design can be seen four ways, and is thus provided with four different captions, depending on which way you turn the page. For example, three orange circles on a yellow background can be ""spots on a giraffe,"" ""Two balloons having a catch,"" ""A close-up view of Swiss cheese,"" or ""two big eyes and a nose."" To reinforce the minimalist impression, each facing, left-hand page is a solid dull gray. There are a few whimsical interpretations--a somersaulting caterpillar, a rolling hot dog--but few if any perspective-jolting clicks. However, the basic concept and the spiffy execution make the book an attention-engaging novelty.