This guidebook bridges the gap between knowledge and empathy surrounding Attention Deficit/Hyperactivity Disorder (ADHD). It is an inclusive resource for parents, teachers, adults with ADHD, healthcare professionals, and other personnel. This guidebook sheds on the complexities of ADHD, providing insights, strategies, and guidance for individuals across their lifespan. With well-researched findings, it will help parents, teachers, adults, and healthcare professionals better support persons dealing with ADHD.