Dr Joanne Steer is a chartered clinical psychologist with 19 years' experience working in Child & Adolescent Mental Health Services providing assessment and diagnosis of ADHD in children under 18 years. Joanne is the Associate Director for Emotional Health Services at Achieving for Children in South West London. She has authored and co-authored multiple books on ADHD for children and parents. Claire Berry is an accredited Cognitive Behavioural Therapist with 13 years' experience working in Child and Adolescent Mental Health services. Claire provides ADHD assessments to young people under the age of 18 along with therapeutic intervention for those with a comorbid mental health difficult. Claire also delivers training to the children's workforce on understanding and supporting ADHD and is a contributing author to Understanding ADHD in Girls & Women Edited by Joanne Steer.