Kate Collins-Donnelly has worked as a therapist, psychologist, criminologist and anger management consultant based in the UK for many years. She presently runs a successful independent consultancy practice which provides cognitive behavioural therapy, counselling, coaching and training, and is head of the Psychological and Criminological Research Division. She is the author of several books for children and young people published by Jessica Kingsley Publishers, including Banish Your Body Image Thief, Banish Your Self-Esteem Thief and a range of titles in her Starving the Gremlin series.