Consider the spot illustration, the unsung toiler of the magazine page. It is small; it does not call attention to itself; it is missed by many insistent readers as they chase the progress of a story across columns and ads. It is kin to the textual space filler at the bottom of a page, but its language is visual. Some of Richard McGuire’s sequences are taxonomies: bird cages, hats, ice, or the collection of wire shapes that decorates the front matter of this book. They manage to be at once witty and somehow scientific, and you might wish there were a hundred examples rather than just seven.