Source and Rights Policy

The Atlas links to original hosts and writes independent summaries. It does not reproduce course materials, paywalled chapters, transcripts, figures, datasets, or media unless permission or a compatible license is verified and attribution requirements are satisfied.

Short quotations may be used only when necessary for commentary, clearly marked, and attributed. A public URL does not itself grant republication rights. When status is unclear, prefer a link and original description.

Canonical URL, author, access, and license details belong in resource data. Source notes evaluate usefulness and limitations without replacing the source.

For content-specific rules and removal handling, see Content Rights. Editorial decisions remain governed by Editorial Policy.