What is the general term for material (preface, cover, review, critique…) that accompanies or comments on a text?

Name: What is the general term for material (preface, cover, review, critique…) that accompanies or comments on a text?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The general term for material that accompanies or comments on a text is "paratext." Peritext refers specifically to material at the beginning or end of a text, and epitext refers to material outside of the text itself (such as interviews or author's notes).

What Is the General Term for Material (Preface, Cover, Review