After nine months of shooting video author interviews, ReadRollShow revealed the most watched author videos of the year–an interesting peek at a new interview format.

The most popular video was an interview with Susan Casey about her surfing book, The Wave: In Pursuit of the Rogues, Freaks and Giants of the Ocean. We’ve embedded the video above–the rest of the list includes everybody from Rebecca Skloot to Sam Lipsyte.

Here’s more about the video: “Laird Hamilton helped to invent tow surfing, where a jet ski, driven by a partner, tows the surfer to the start, enabling them to catch waves far bigger and faster than any they could catch by hand-paddling. Laird’s feats in the water are the stuff of legend. But then one event during Casey’s research surpassed all others.”