nonserials

/nɑnˈsɪriəlz/
noun
  1. Items or products that are not part of a series or sequence, especially publications or media released as standalone pieces.
    • The library keeps nonserials like single novels separate from ongoing magazine subscriptions.
    • Our store sells both serial comics and nonserials, such as graphic novels that tell a complete story in one volume.
    • The archive catalogs nonserials separately because they don't require tracking of multiple issues.