When brief, structured psychological interventions based on principles of cognitive behavioural therapy (CBT) are offered for adults with generalized anxiety disorder (GAD) and/or panic disorder, different delivery formats should be considered based on available resources as well as individual preferences, including: y individual and/or group face-to-face; y digital/online and/or face-to-face; y guided and/or unguided self-help; y specialist and/or non-specialist.