Dewey Decimal System Day today marks the birthday of librarian Melvil Dewey and celebrates the library classification system that reshaped how readers find nonfiction on the shelves. For generations, ...

Humans, for the most part, count in chunks of 10 — that’s the foundation of the decimal system. Despite its near-universal adoption, however, it’s a completely arbitrary numbering system that emerged ...

A book classification system for libraries that was created by Melvil Dewey in the 1870s and copyrighted in 1876. Used to this day in thousands of libraries worldwide, mostly for non-fiction content, ...