Seminar vs Melissa's books

Hi - my husband and I are reading through Melissa's book about the ADHD Effects on Marriage (loving it - such a relief to have these issues finally explained) and I'm just wondering - how different are the seminars from the book? Do the seminars provide more/different information or are they based on the books but expanded with more anecdotes, etc? More detailed info on the seminars would be appreciated. I checked out the info on this site about the seminars but maybe I missed something?