The first edition of Theory of Addiction summarised the major theoretical approaches that attempt to explain the range of phenomena that we call 'addiction' and synthesise these into an overarching theory that captured their main core features. It was borne out of a need for a single model that could account for features of addiction that involve conscious choice, powerful desires and impulses, and attempts at, and failure of, self- control. It needed to bring in ideas of pleasure-seeking as well as relief from mental and physical discomfort. It needed to account for individual differences in...