The Encyclopædia Britannica: A Dictionary of Arts, Sciences, Literature & General Information. 13th Ed., Being Volumes One to Twenty-eight of the Latest Standard Edition with the Three New Volumes Covering Recent Years and the Index Volume ...

The thirteenth edition of the Encyclopædia Britannica was published in 1926 as a direct extension of the landmark eleventh edition, which had been acquired by the Sears, Roebuck & Co. under the stewardship of Hugh Chisholm. Designed to update the repository of human knowledge following the profound geopolitical shifts of World War I, this iteration integrated the original twenty-eight volumes of the eleventh edition with three new supplementary volumes. The editorial objective was to bridge the era of pre-war scholarship with the rapid advancements in science, technology, and political history that defined the early 1920s.

Hugh Chisholm, who served as editor-in-chief, oversaw a rigorous editorial process that prioritized academic authority and comprehensive cross-referencing. The design and presentation were intended to maintain the prestigious, scholarly aesthetic that had become the hallmark of the Britannica brand since its move to an American-led publishing model. While the edition was well-received as an essential reference tool for libraries and private study, it also represents a transitional moment in publishing, as the rapid pace of change during the interwar years eventually necessitated the even more comprehensive updates found in the fourteenth edition.