Collection development at Monash University Library aims to fulfil the research and curriculum needs of university staff and students. To support the Faculty of Art, Design and Architecture (MADA), collection development operates as a collaboration between academic faculty and the Subject Librarian. In order to further develop this collaboration and to encourage the selection and use of design resources by authors from diverse backgrounds, design lecturers and library staff have initiated The Equity Collection project. The aim of the project is to investigate the diversity of the collection in its current state and to improve its ability to reflect and extend the multicultural nature of the university community. The project includes a campaign to collect and promote books from the design world authored by under-represented groups, including Indigenous Australians, people of colour, and female and non-binary authors. This project is unique in its utilisation of the expertise of the design faculty who have extensive knowledge of authors, small publishers and less widely distributed publications.