ELI5: Explain Like I'm 5

Supplement (publishing)

Supplements in publishing are basically like extra pages or sections that are added to a book or magazine to provide more information or expand on a certain topic. It’s like adding stickers or new pages to your coloring book to give you more to color in or learn about.

Sometimes a supplement might include more pictures or diagrams to help explain a concept, or it might include interviews with people who have expertise in a certain area. Other times it might provide updates or corrections to information that was included in the original publication.

Supplements can be really helpful because they give you more information and keep you up-to-date on important topics. Just like how your teacher might give you extra materials to help you understand a subject better, supplements help readers understand a book or magazine better.
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