As a published author, you will want to get your books into book expos, where they will be seen by possibly thousands of people. Book expos are held annually in a variety of cities around the world. However, you don’t necessarily have to be in attendance to have a presence there. Some sites offer this service for a price. Here are some links:
For book expos in Canada go to: http://reedexpo.ca/bookexpo
For the United States go to: http://www.bookexpoamerica.com
It should be noted that taking part in these book expos can be costly. In some cases, you will be able to send your books to the event without actually being there yourself. However, it is difficult to determine just who picks up your book and/or what they think of it. You should attend a bookselling event in your own community, if there is one. That way, you can be there in person to represent your books.