. . . "He is the author or co-author of numerous articles and five books, including Law and Order: Street Crime, Civil Unrest, and the Crisis of Liberalism in the 1960s (2005), Debating the 1960s: Liberal, Conservative, and Radical Perspectives (2007), Debating the Reagan Presidency (2009), and The Chicago Handbook for Teachers: A Practical Guide to the College Classroom (2011)." .