Susan Young (Author) Susan Young, DClinPsy, PhD, is an internationally recognised, award-winning clinical psychologist, author, and Director of Psychology Services Ltd. An Honorary Professor at Reykjavik University, she has played a leading role in ADHD guideline development, authored widely used assessment tools including ACE and ACE+, and published extensively on ADHD and related conditions. Sarah Grundy (Author) Sarah Grundy is an HR transformation leader and neurodiversity advocate with over two decades of experience in human resources. She has expertise in talent management, performance systems, organisational development, and designing inclusive HR processes within large-scale global organisations. She has shared her lived experience of late-diagnosed ADHD with The Guardian and online. Tony Bulleid (Author) Anthony Bulleid brings over 35 years of leadership experience across blue-chip companies, start-ups, and consultancy, with expertise in business strategy, coaching, team development, and complex global markets. He has led large multicultural teams across Europe, the Middle East, and Africa, and now works as a consultant and occupational coach.