This history covers the frontier period of the Ohio territory. In my Ohio high school I learned some of the main events (French and Indian War, Fallen Timbers, 1803, War of 1812, etc) but nothing beyond that. This book filled in a lot of the gaps, providing context for those big events, and fleshing out the main players in the region. For instance, I did not know that the region was essentially uninhabited by any people as of the beginning of the 17th century, with American Indians tribes like the Delaware (Lenape) and Shawnee moving in from other regions. The author details the interests of the major European powers as well the various tribes (and even breaks within the tribes), and emphasizes the cultural misunderstandings between the two peoples that led to so much bloodshed during the late 18th century.
There were in my mind two major sections to the book: the first told of conflicts between the American Indians and French/British/Americans, all leading up to the Battle of Fallen Timbers. That battle and the treaty signed shortly afterwards ushered in the second major section in the book, the settlement of the territory, and later the state, ending with the building of the Ohio and Erie canal in the late 1820s. I found the second section more interesting, particularly the sections about agriculture, which makes sense given the expertise of the author (professor of Rural Studies). For instance, many early settlers could not ship corn to the eastern cities given the lack of any kind of road system for timely shipments, so instead they manufactured whiskey or used the corn to raise hogs to drive east over the Appalachians.
The one gripe I have with the book is that it doesn't seem to know what it is. It reads like an academic history, but it has no footnotes at all. The sources are covered in an essay at the end of the book, but it's difficult to figure out which particular source would be useful to read on a specific subject. Even so, the book is a useful introduction to a rarely covered period of history.