Lewis told The Hill on Saturday following a standing room-only panel, “Reaching out to the next generation, it’s important. It’s history.”

Lewis’ co-author and congressional staffer, Andrew Aydin, said of the reception to the illustrated book, “It’s been unreal.”

SPX Executive Director Warren Bernard expressed excitement at having the House member join in on the annual gathering, saying, "We've never had anything like this before."

Lewis is currently working on the second installment of the trilogy and is aiming for a 2014 release date.