"The Sackett Series" is a collection of novels written by author Louis L'Amour, focusing on the adventures of the Sackett family, a group of rugged frontiersmen in the American West. The series spans several generations, beginning with Barnabas Sackett, who settles in the New World, and follows his descendants as they navigate challenges such as outlaws, Native American tribes, and the harsh realities of frontier life. The series includes over a dozen books, each featuring different members of the Sackett family. Notable titles include "Sackett's Land," "The Daybreakers," and "The Lonely Men." The stories highlight themes of bravery, loyalty, and the pursuit of freedom in a rapidly changing landscape.