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Reading guides include shorter introductory guides. Catalogue discovery pages use metadata and general reading prompts; they are not full passage lessons.

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External PDF opens a checked provider-hosted PDF. Read online opens an external text or resource; some providers require their own free account. Collection entries open a provider hub containing further resources. Publisher edition takes you to an edition you can obtain or borrow. OpenStax pages also offer PDF options through the provider.

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Use your teacher’s assigned edition for quotations and page references. Study level does not mean a text is on your examination specification.