This year, ISTD posted out a brief titled 'numbers,' intending to get people more interested in mathematics. One of my initial ideas was working with zero; despite its representation of nothing, it is a fundamental part of any counting system, and has a deeply interesting history and origin. To go with this idea, I started thinking of a way to represent 'nothing,' as it were. After a few different tries, I ended up with a book that featured holes cut out of various pages, to show, quite literally, a lack of something.