Professor Michael Hann (BA, M.Phil, PhD, FRSA, FRAS, FTI) holds the Chair of Design Theory at the University of Leeds. He is also Director of ULITA - An Archive of International Textiles, an important international archive (and, in the context of this book, a rich source of illustrative material). He has published across a wide range of subject areas, has made numerous key-note addresses at international conferences, and is an acknowledged international authority on the geometry of design. He has held adjunct, visiting or invited professorships at institutions in Belgium, Taiwan, Hong Kong, Korea and China. Recent book publications include: Structure and Form in Design (Berg, 2012), Symbol, Pattern and Symmetry (Bloomsbury, 2013) and Stripes, Grids and Checks (Bloomsbury, 2015). A co-authored treatise entitled Patterns: Design and Composition (Routledge) is anticipated for publication in 2019, as is the single authored work The Grammar of Pattern (Taylor and Francis)