David Trowbridge is a professor of history and Director of the African and African American Studies program at Marshall University. He is the author of numerous works, including a two-volume open textbook about US history, A History of the United States. It was published by Flat World Knowledge in 2012. The book is similar to other textbooks in that it was peer-reviewed throughout its creation and is available to students in a variety of formats (print, audio, digital). The book is unique in that students can also read the book for free on the Flat World Knowledge website.
In addition to his academic career, David Trowbridge serves in the National Guard and is a veteran of the Iraq War.