FOOD ADDITIVES: A GUIDE TO NUMBERS aims to make the unfamiliar world of food additives more accessible through the design of a reference book and an app. The book documents every additive approved in Australia and New Zealand and provides information about what they are, what they are made from and their purpose. Accompanying the factual information are playful visual metaphors and bizarre-but-true written content designed to make the otherwise dry information, more engaging and communicative. The app follows on from the book. It contains the same content as the reference book but has been designed with a shopping context in mind where information can be easily accessed on hand. Additives can be searched or selected by number and was designed so that navigating was as straightforward as possible. Like the book, the app follows a colour scheme so you know which group of additives you are looking at.