A few US history books on sale at Amazon.ca today; I assume this is a July 4 promo so very likely also on sale at Amazon.com:
Drawing the Line: How Mason and Dixon Surveyed the Most Famous Border in America (2ed) by Edwin Danson for $CDN 4.99 (discounted from $CDN 35.95!)
https://www.amazon.ca/Drawing-Line-S.../dp/B01DQ3GYTI
Washington's Crossing by David Hackett Fischer for $CDN 1.99
https://www.amazon.ca/Washingtons-Cr.../dp/B000SEOQOE
Read this several years ago, a good account of a key moment in the American War of Independence
Paul Revere's Ride by David Hackett Fischer for $CDN 1.99
https://www.amazon.ca/Paul-Reveres-D.../dp/B003V8AFBW
Not bad, but l think Washingtons Crossing is the better book
Setting the World Ablaze: Washington, Adams, Jefferson, and the American Revolution by John Ferling for $CDN 2.99
https://www.amazon.ca/Setting-World-.../dp/B00VQVPEYE