Glenn Waller is a Professor of Clinical Psychology at the University of Sheffield, UK. He has a particular focus on the real-world effectiveness of cognitive behavioural therapy for eating disorders. He served on the development group for the 2017 NICE eating disorder guideline. He is a past President of the Academy for Eating Disorders, and is an Associate Editor for the International Journal of Eating Disorders. Hannah M. Turner is a Consultant Clinical Psychologist at the Southern Health NHS Foundation Trust Eating Disorders Service, UK. Her interests include treatment effectiveness in community settings. She is a British Association of Behavioural and Cognitive Psychotherapy (BABCP) accredited therapist and supervisor. She served on the development group for the 2017 NICE eating disorder guideline. Madeleine Tatham is a Consultant Clinical Psychologist at the Norfolk Community Eating Disorders Service, UK. She is a British Association of Behavioural and Cognitive Psychotherapy (BABCP) accredited therapist and regularly contributes to Clinical Psychology Doctorate teaching programmes in the UK. Victoria A. Mountford is Principal Clinical Psychologist at the Eating Disorder Service, South London and Maudsley NHS Foundation Trust, UK. Her interests include early intervention, body image, and improving psychological treatment outcomes in the eating disorders. She is a British Association of Behavioural and Cognitive Psychotherapy (BABCP) accredited practitioner, supervisor, and trainer. Tracey D. Wade is the Matthew Flinders Distinguished Professor of Psychology at Flinders University, Australia. She has served as President of the Eating Disorder Research Society (2017-2018) and is an Associate Editor for the International Journal of Eating Disorders. In 2016 she was made an Inaugural Honorary Fellow of the Australian Association for Cognitive and Behaviour Therapy.