This is not the official classification of ADD or ADHD, but an "easy reference" summary of ADD / ADHD, by Christopher Green (1997). It is also important to note that since then, much research has been done and have broadened our perspective and understanding of ADD and ADHD.
Since my "Self-help # 1", I have read some more (Barkley, 2010), tried some more and like to share my journey with you. From Russel Barkley's book, followed from the research results, I've used these 5 steps. Please buy the book as your day-to-day referencADHD See - its worth it.
Knowing from experience that ADHD is not outgrown or cured", it is true that adult ADHDers have developed skills over the years to handle those traits that are characteristic of ADHD. Also, typical ADHD characteristics presents itself differently in adulthood, than in childhood. For example, a adult will not hop around like a hyperactive child. An adult's hyperactivity will show in the never-ending energy, 101 things going, but none finished (how many unfinished books do you have on your pedestal?), "verbal diarrhoea" etc.