In 1993 Behavioural and Cognitive Psychotherapy published a supplement edited by Ann Hackmann with the title “Behavioural and Cognitive Psychotherapies: Past History, Current Applications and Future Registration Issues”. This was the journal's first ever supplement and it provided an overview of the state of behavioural and cognitive psychotherapies at that time. It was intended to provide a context for discussions concerning the future of the field, and as Paul Salkovskis said in his editorial, “[the supplement]. . .will be an important reference source for years to come.