A Library from the 1920s, of books in the public domain
Organizing our Books: The Century Past Library employs the Dewey Decimal Classification (DDC) system that has been used by most public libraries since the early 20th century. This Subject Catalog is only a partial listing of DDC subject headings. For a more thorough list of DDC headings, see this Wikipedia List of Dewey Decimal classes.
— Subject Catalog —
Clicking a subject takes you to a page with book descriptions and book links.