Dr Kerstin Thirlwall is a clinical psychologist working in private practice. She is co-author of Parent-led CBT for Child Anxiety.

Dr Monika Parkinson is a clinical psychologist and Research Fellow at the University of Reading. She is co-author of Am I Depressed and What Can I Do About It?, Teenage Depression - A CBT Guide for Parents and Parent-led CBT for Child Anxiety.

Cathy Creswell is a professor of developmental clinical psychology based in the school of psychology and clinical language sciences at the University of Reading and an honorary consultant clinical psychologist and joint director of the University of Reading Anxiety and Depression in Young People (AnDY) clinical research unit.

Lucy Willetts is a clinical psychologist and accredited CBT therapist. She is also a visiting fellow at the University of Reading.

She has a particular interest in the treatment of anxiety disorders in children and young people and has published a number of research papers and several books.