This Dr. Seuss and P.D. Eastman dictionary was one of my favorite books as a child and it is now a favorite of my two-year-old son. Unlike the static illustrations of many other children's dictionaries, Eastman's colorful drawings are lively and always suggest a story. Sometimes my son and I will read portions of the dictionary straight-through, and other times we will randomly browse the book, discussing various pictures as they catch our eyes. Many of the entries actually tie together into humorous narratives. There are also a number of recurring characters, such as the bad baby who manages to spill his food, spill his drink, draw on the wall, paint on the wall, and float away in a boat, Aaron the Alligator and his unfortunate airplane, and oddballs Aunt Ada and Uncle Uriah. However, the four look-alike boys (Jerry, Joe, Jack, and James) who make their appearances in numerous entries were my personal favorites when I was a kid. Of course, Dr. Seuss injects his usual silliness into the text (e.g., "In our backyard we have a hippopotamus" and "A nest full of zyxuxpf birds" are, likely, his touches), but Eastman's drawings keep the book reasonably well-anchored in the known universe.
As other reviewers have noted, the book's illustrations and text have generally aged well, though some of the references may perplex young readers: home movie projectors, milkmen, phonographs, typewriters, and popguns. Also, there are references to "American Indians" and "Eskimos" that no longer sit with us as well they once did. Finally, some potential buyers might be misled by the title, as the Cat in the Hat character does not actually appear anywhere within the book. Rather, the illustrations are entirely from the hand of P.D. Eastman.
A fine gift for a toddler or preschooler, this big book is fun to explore and is an excellent tool in language development. No preschool or kindergarten class should be without a copy or two of this classic.