On 23 May 2014 the Mackintosh Building at the Glasgow School of Art was devastated by fire. This disaster destroyed the School’s world-famous Mackintosh Library and its historical collections, along with many objects from its museum collections. The School’s archives, though saved, were damaged by smoke and water. This talk will highlight some of the resources that were lost and saved across the library, archives and collections, with a particular emphasis on resources for the study of colour and its perception.