I recommend "Driven to Distraction: Recognizing and Coping with Attention Deficit Disorder" by Edward Hallowell and John Ratey (https://www.goodreads.com/book/show/18712223-driven-to-distr...). I discovered this book thanks to HN and a post about dyslexia. The book shows quite a few stories of adults with AD(H)D and how do they cope with work and relationships. The stories are diverse (it is certainly not all ill-behaved boys), and give a point of reference.

I wished I had known that book before. I got diagnosed only the last year, being 33 years old. Before turning 30 I hadn't suspected having ADHD, as I had quite a few misconceptions both about the condition, and what is "typical" in humans.