"He published his most ambitious and encyclopedic book at the age of 92 (and credited his productivity in part to chronic insomnia). That work, From Dawn to Decadence, is an 877-page survey of 500 years of Western culture in which he argued that Western civilization itself had entered a period of decline."The Bibliography of Additional Readings in Great Books of the Western World (2nd Ed. 1990) includes Barzun's Clio and the doctors : psycho-history, quanto-history, & history (1974). The Bibliography of Additional Readings in Great Books of the Western World (1st Ed. 1952) includes his Teacher in America (1945).
Update: Jacques Barzun, 1907–2012, by Brian P. Kelly, Arma Virumque, and The Achievement of Jacques Barzun, by Gerald J. Russello, On the Square (