One of the book's most notable advocates is former United States First Lady Laura Bush, who listed it as her favorite book in a 2006 "Wall Street Journal" article. "It features Dr. Seuss's typically wonderful illustrations and rhymes, of course, but the main thing for me is the family memory—the loving memory—that the book evokes of George lying on the floor and reading it to our daughters, Barbara and Jenna. They were little bitty things, and they took "Hop on Pop" literally, and jumped on him—we have the pictures to prove it," she wrote.