John Booth Davies (1944-2017) Emeritus Professor was both a psychologist and a talented musician. He completed his PhD on the topic of musical ability but combined this with playing piano and trumpet in jazz clubs. He made significant and lasting contributions to each of the diverse fields that took his interest throughout his career. The Psychology of Music was his first book, largely dealing with the cognitive psychology of music, he went on to publish books challenging the dominant way in which addiction is understood. The Myth of Addiction and Drugspeak: The Analysis of Drug Discourse are also available from Routledge.