Series:
* The Buckaroo series:
* _The Buckaroo_
* _The Buckaroo's Bride_
* _The Buckaroo's Claim_
* _The Buckaroo's Law_
* _The Buckaroo's Vengeance_
* _The Buckaroo's Last Ride_
* The Chisholm Trail series:
* _The Chisholm Trail_
* _The Chisholm Trail Riders_
* _The Chisholm Trail War_
* The Texas Rangers series:
* _Texas Rangers_
* _The Texas Rangers and the Comanches_
* _The Texas Rangers and the Mexicans_
* _The Texas Rangers and the Outlaws_
* The Wyoming Outlaw series:
* _The Wyoming Outlaw_
* _The Wyoming Outlaw's Revenge_
* _The Wyoming Outlaw's Trail_
Standalone novels:
* _The Gunfighter's Code_
* _The Outlaw's Son_
* _The Man Who Killed Wyatt Earp_
* _The Saga of the Chisholm Trail_
* _The Last Stand at the Alamo_
* _The Battle of Little Bighorn_
* _The Pony Express_
* _The Wild Bunch_
* _The Great Train Robbery_
* _The Oklahoma Land Rush_
* _The Great American West_
Non-fiction:
* _The History of the American West_
* _The Westward Movement_
* _The Cowboy: A History_
This is not an exhaustive list, as Gerald Dean Ewing wrote over 100 books during his career. He was known for his fast-paced plots, vivid descriptions, and authentic depictions of the American West.