This paper is a review of the literature that attempts to explain and document the literature on the flipped classroom. It examines 49 studies that explain the flipped approach in the classroom. This paper, particularly, delineates the history, the theory, benefits, criticisms, recommended practices, and what the research on flipping reveals. After reviewing the literature, the author concluded that there is a resurgence in the use of the flipped classroom. This body of information representing the work of teachers, principals, and college professors will serve as a useful source in deciding whether or not to execute the flipped classroom as a viable teaching methodology.