Dewey Decimal Classification
... that before Dewey Decimal Classification , books in most U.S. libraries were arranged by height and order of acquisition?
... that before <b id="mwCsQ"><a href="./Dewey_Decimal_Classification" id="mwCsU" rel="mw:WikiLink" title="Dewey Decimal Classification">Dewey Decimal Classification</a></b> <i id="mwCsY">(inventor pictured)</i>, books in most U.S. libraries were arranged by height and order of acquisition?