This book investigates the myths, materialities, and ideologies of the colour white. Spanning geographically and chronologically from Greek antiquity to white Arctic landscapes in climate-change aesthetics, Deep White reveals peripheral complexities, unveils non-iconic ambivalences, and unsettles dominant narratives. The book’s 25 chapters both forge connections between—and disentangle—ideology and materiality by analyzing case studies including lead white, ancient white make-up powders, white in mediaeval church art, marble, papier-mâché, plaster, white architectural paint, salt, porcelain, milk, and the white pigment titanium dioxide. Written with a collaborative, experimental methodological approach that merges art history, artistic research, and research-by-design, Deep White foregrounds the material presence of white as key to rethinking its cultural and political significance.