This in conversation between Dominic Bilton, Sarah-Joy Ford and MT Hutchinson discusses the importance of the publication (Un)Defining Queer on museum practice. Produced by the Whitworth, this book is the first publication of its kind, exploring how Constituent Museum Practice and queer theory were used to 'queer' the Whitworth's collection. This publication is celebrated as a legacy book for (Un)Defining Queer, an exhibition which was on display at the Whitworth from 27th January to 3rd December 2023. The texts within the book explore what Constituent Museum Practice is and how using this approach to queer museology, in combination with Queer Theory (Judith Butler, Sara Ahmed et al.), has been instrumental in the development of this participatory exhibition.