Cartography between Christian Europe and the Arabic-Islamic world, 1100–1500. Divergent traditions. Edited by Aldred Hiatt. (Maps, Spaces, Cultures, 3.) Pp. xiv + 235 incl. 45 colour and black-and-white ills. Leiden–Boston: Brill, 2021. €94. 978 90 04 44491 1; 2352 7900