The book explores research about the visual factors that determine how a building is received - sometimes esteemed by one group and despised by another. It creates a synthesis of decades of insightful research and provides insights into what factors contribute to a building being perceived as delightful. While it is of particular interest to anyone who creates or manages buildings or cities, it is written in a non-technical style so as to be accessible and entertaining to anyone who takes an interest in the buildings and urban spaces that we inhabit.