The author is pleased to acknowledge a debt of gratitude to the following at Thames & Hudson: Colin Ridler for commissioning the project; Jen Moore, the editor, for unstinting encouragement; Carolyn Jones for scrupulous, helpful attention to the text; Louise Thomas for painstaking picture research; Adam Hay for thoughtful design work; and Celia Falconer for detailed attention to the illustrations. I would also like to thank Lucia Gahlin (University of Exeter) and Jan Picton (UCL Institute of Archaeology) for bringing to my attention the quote on page 267, to Dr Aidan Dodson (University of Bristol), Dr José-Ramón Pérez-Accino (Universidad Complutense de Madrid) and Dr Toby Wilkinson (University of Cambridge) for supplying photographs from their personal archives, and to Claire Gilmour (East Ayrshire Museums) for preparing the line drawings on pages 132–33.