Correspondence, manuscripts, memorabilia, photographs, and printed materials. The correspondence consists of letters relating to the publication and review of Jäckh's books, articles, and book reviews and typescript copies of letters by Hans Jäckh. There are manuscripts for his articles, lectures and speeches as well as clipping files of book reviews and articles by and about Jäckh in the European and North American press. The bulk of the collection is written and printed in German and deals with the Balkans and the Near East before 1920, including the Balkan War of 1912-1914, and the Turkish Revolution. Of particular interest are manuscripts and articles describing his land travels between 1903 and 1913 with the German fleet and on hot air balloons. Other topics covered include the Hocjschule für Politik, German labor unions, German-European relations, European attitudes towards the United States, and his literary works. There are also some manuscripts dealing with the Balkans and the Near East during World War II. An extensive file of photographs depicts, Albania, Asia Minor, Baghdad, the Balkans, Constantinople, Genoa, the German naval fleet, the Hochschule für Politik, hot air balloons, Italy, the Mediterranean, Turkey, the Turkish Revolution, the United States, Versailles, and Weimar. There are books from Jäckh's library, some with marginal notes, some signed and inscribed to him as well as copies of his own works.