Dave Eggers was born in Boston in 1970. He is the author of A Heartbreaking Work of Staggering Genius, You Shall Know Our Velocity, The Unforbidden is Compulsory, How We Are Hungry, Short Short Stories, Teachers Have It Easy, Surviving Justice, What is the What, How the Water Feels to the Fishes, The Wild Things, Zeitoun, A Hologram for the King, The Circle and Your Fathers, Where Are They? And The Prophets, Do They Live Forever?

A Hologram for the King and The Circle are both currently in production for major film adaptations. Dave Eggers is the founder of McSweeney's independent publishing house, the 826 National network, and the nonprofit organisation ScholarMatch. He lives in Northern California with his family and Heroes of the Frontier is his seventh novel.

Shawn Harris is an artist and musician who began his career by doing record and poster art for his band, the Matches, in 2003. Since then he has created art for musicians such as Adele, Snoop Dogg, and 311. His first picture book, Her Right Foot, was written by Dave Eggers. Shawn Harris lives in Morongo Valley, California.