* Mennonittene (2001)
* Time Circle (2004)
* Charlie:The Unlikely Legend of Charles "Crazy Horse" Thompson (2007)
* Dead End Alley (2011)
* Da bunnen falt ut (2014)
Faglitteratur
* The Cowboy Life (1989)
* Wild Rides:The Fast Life and Tough Times of a World-Champion Bareback Bronc Rider (1994)
* The Last Horseman:The Life of a Modern-Day Cowboy (1998)
* The Cowboy Artist:The Life and Times of Charles M. Russell (2002)
* The American Cowboy (2004)
* The Cowboy Way:An Enduring Legacy of Western Values (2011)
* Cowboys &Mustangs:Tales of the Wild West (2014)
* The Cowboy Spirit:The Enduring Legacy of the American West (2017)
Barnebøker
* Buster den store! (2005)
* Buster gjør et ønske (2007)
* Buster and the Bad Day (2009)
* Buster tar en tur (2011)
* Buster får venner (2013)
Andre arbeider
* The Western Reader:A Celebration of the American West (2004, redaktør)
* The Cowboy Reader:Stories, Essays and Poems from the American West (2007, redaktør)
* The Horse Reader:Stories, Essays and Poems from the American West (2009, redaktør)
* The Adventure Reader:Stories, Essays and Poems from the American West (2011, redaktør)