Based on a dataset of unparalleled extent containing nearly 1500 books, this article for the first time offers an analysis of the War Books Boom that combines the qualitative and quantitative. The Boom did not simply rise and fall; an early peak in publication in 1928 was followed by a dip in 1929, as huge successes like R.C. Sherriff’s Journey’s End and Erich Maria Remarque’s Im Westen Nichts Neues (All Quiet on the Western Front) dominated the market and were successful in the subsequent two years in a variety of media. The major peak, far exceeding that of 1928, was in 1930, as both publication and commentary trends spiked. The Boom was understood in commentary as such at the time, and the surrounding discourse saw this moment as a battl...