How to open supplementary content

Supplementary content is bonus content that comes with certain titles (like additional illustrations, maps, documents, or diagrams). A title with supplementary content will say "includes supplementary content" on its details page.

To open supplementary content:

  1. Go to your Loans page (under loans).
  2. Select Supplementary content next to the borrowed title, then select Read now in browser or Listen now in browser. The supplementary content will open in a new tab in your browser.
Last Updated: 21 May 2026 04:07 PM