This novel has a great many images which are essential to the development of the story. Probably the most important is Clay’s digital model of the bookstore, which helps him solve the mystery of the founder’s puzzle. Using his knowledge of computer programming, Clay creates an interactive model of the books in the store and the patterns in which the patrons check them out. He discovers that the order of the books reveals a pattern shaped like the face of Aldus Manutius, the founder of the Unbroken Spine. Once he solves the puzzle, he is able to delve much deeper into the mysteries of the bookstore.
This visual image was obviously so important to the story that the American cover artist decided to replicate it on the front of the book. If you pick up a copy of the American edition, the little yellow books glow in the dark, just like Clay’s model.
In addition to the major image of the glowing shelves, lesser images such as Kat’s red t-shirt with “BAM!” written on it and Manutius’s dolphin and anchor symbol serve as leitmotifs which hold the story together. Overall, visuals are very important to this novel.