Five years ago this month journalist Collin Hansen published his first book: Young, Restless, Reformed: A Journalist’s Journey with the New Calvinists (Crossway, 2008). True to its title, the book is a travelogue of Collin’s journey across the country documenting a surging movement called New Calvinism by some, and Young, Restless and Reformed (YRR) by others, a title he coined himself. Collin’s hunches about the new movement were confirmed in 2009 when Time Magazine named “New Calvinism” as one of its “10 Ideas Changing the World Right Now.”

But it’s been five years since the release of his book, and YRR has changed in that time. What have been the biggest changes and the biggest surprises? Where is the movement now? And what dangers lie ahead for the movement?

We put Collin Hansen on the line to ask him those questions and more. He lives in Birmingham and serves as the editorial director for The Gospel Coalition. In the midst of preparing for the TGC National Conference in Orlando this month, he took time for this 30-minute interview for Authors on the Line.