<human>: What are some of the best books I can buy about the history of the United States?
<bot>: Some of the best books you could buy on the history of the United States include "The American Pageant" by Henry Steele Commager and Allan Nevins, "A History of the United States Since 1865" by Charles A. Beard, "American History: A Chronology" edited by John A. Garraty and Mark C. Carnes, "The Story of America: History for the Classical Child" by Susan Wise Bauer, "This Glorious Struggle: The American Civil War" by James M. McPherson, and "The American Journey: A History of the United States" by H.W. Brands.