This book is dedicated to the countless individuals living with Adult ADHD who demonstrate remarkable resilience, perseverance, and creativity in the face of significant challenges. Their unwavering spirits, coupled with their persistent quest for self-understanding and improved wellbeing, inspire us all. It is also dedicated to the compassionate healthcare professionals - psychiatrists, psychologists, neurologists, and others - who dedicate their lives to understanding, supporting, and treating individuals with this complex condition. Adult ADHD remains significantly under-recognized and undertreated, resulting in substantial personal and societal costs. This book aims to bridge this gap by providing a comprehensive, accessible, and evidence-based resource for both individuals with ADHD and the healthcare professionals who support them. Written with a dual audience in mind - those seeking self-understanding and healthcare providers seeking the latest clinical guidance - this work integrates theoretical knowledge with practical applications.