The world’s most widely used classification system can organise every item in your library’s unique collection. Dewey® products and services are only available online.

Dewey products will help you master the classification system. The Dewey Decimal Classification® system continues to evolve to reflect the changing world around us.

The benefits of the Dewey Decimal Classification® system

• The classification system is only available online.
• Streamlines your workflow. The current edition includes structural changes to improve usability and simplify classification tasks.
• Improves your service. Careful consideration is put into each revision and addition to help libraries better classify works for easier access.Helps you stay current.
• WebDewey subscribers automatically receive updates to the classification system.