and over five hundred physical copies have sold.
== Athletics ==
The school's athletics programs are affiliated with NCAA Division I. CMU was a member of the Interstate Intercollegiate Athletic Conference from 1950 to 1970. Almost all Central Michigan teams compete in the Mid-American Conference; the one exception until recently was the women's lacrosse team, newly elevated from club to full varsity status for the 2015–2016 school year. It competed in the Southern Conference for a time, but joined the MAC for the 2021 season.
The football program is known for producing players such as Antonio Brown and Joe Staley. Before moving up to Division I, the football team won its second NCAA Division II national championship in 1974 by defeating the Delaware Fightin' Blue Hens 54 to 14. Notable Division I years include 1994, 2006, 2007, and 2009 when they won the MAC Football Championship Game. In 2009, they finished the season ranked #23 in the final AP Poll and #24 in the final Coaches Poll marking the first time …