Melba J. Duncan has authored several books about the executive assistant role and her company in NY, The Duncan Group, (a search firm that exclusively places chiefs of staff and senior level executive and personal assistants) has amazing training seminars for assistants. Their website is www.duncangroupinc.com. I know they have some seminars coming up in the Spring. Katy Gibbs also gives out certification for assistants. Most CEOs aren't looking for someone certified. CEOs are looking for assistants with top skills which include: exceptional communication skills (written/oral); an understanding global business; leadership skills; top technology skills; poise and diplomacy; and an advanced degree. CEOs want assistants who can think beyond day-to-day issues, and understand the issues they face as business leaders. That means, thinking strategically, in order to solve larger and more complex issues. Demonstrating leadership skills, in order to really be a "point person." Staying on top of what's happening in the world, in order to manage the issues your boss is facing. These are just some of the things CEOs look for in top assistants.