As the name implies, the case is made to look like a book—in this case, a particularly small one. It’s made out of really beautiful brown leather, aged to look like a classic. Along the spine there’s some nice gold-embossed features, included the BookBook name and XII—roman numerals referencing the twelve in the company’s name. Opening the cover reveals a wallet component on the left, and a frame for the iPhone 4 on the…