Modernist book design 1925-1965

Felix Wiedler has an incredible collection of modernist typographic design in german-language books from 1925 to 1965 (and beyond). Why start in 1925? in October 1925 the german printers' trade magazine "typographische mitteilungen" published a special issue entitled "elementare typographie" (elemental typography), containing manifestos by jan tschichold, el lissitzky, laszlo moholy-nagy and others.