Melvil Dewey (December 10, 1851 – December 26, 1931), born Melville Louis Kossuth Dewey, was a transformative figure in librarianship, education, and organizational systems. His invention of the Dewey Decimal Classification (DDC) system redefined how libraries cataloged and accessed knowledge, establishing a global standard still in use today. Beyond the DDC, Dewey pioneered library education, co-founded key institutions like the American Library Association (ALA), and pursued reforms in sp...
