What is the author's style in Flashback: A Brief History of Film by Louis Giannetti?

"Flashback: A Brief History of Film" is written by Louis Giannetti and Scott Eyman. Giannetti is a Professor Emeritus of English and film at Case Western Reserve University. The two authors approached this book as an eclectic collection of historical landmarks marking the history of film. While serious about the subject, they attempted to explain the history of film in layman's terms. The book overflowed with passion for film in general, although it did attempt to remain objective. The authors' primary concern was to write about the history of film focusing on the art more than industry.