What crystallized the importance of speaking out like that - of making nonviolence not just a tool or a tactic, but a way of life - was in San Diego [at Comic-Con]. One of the young girls who marched with us was wearing a hijab, and she came up to me afterward because I talked about my beard, and I talked about why I was doing it, and she came up and she gave me a hug, and she was crying. And she said, "Thank you. You have no idea how the other students treat me because they're shown that this is OK by Donald Trump. Thank you for speaking out."

So March: Book One was the first book I ever wrote. And it was the most terrifying process I've ever been through.

People forget that many of the aspects of the Selma campaign were laid out in response to the church bombing in Birmingham.

We were trying to show that you should be hopeful, you should be optimistic, but you have to be consistent and persistent, because it's not the struggle of a day, a week, a month, or a year. It's the struggle of a lifetime. And so you're going to have to put in 40 or 50 years to reach that high-water mark.

Most students graduate from high school knowing nine words about the civil rights movement: Rosa Parks, Martin Luther King, and "I Have a Dream." And that's it!

One of the biggest challenges for us is that people have different accounts. People say different things happened at different times, and when you're trying to sort through all that, how do you decide what's right?

You have such a sacred responsibility when you touch John Lewis's story, when you touch the story of the movement. You don't want to leave anything out, but you want to tell a good story so the people will read it and they're engaged and they don't fall apart with extraneous details.