# Authors can write many books, and books can have many authors

Canonical URL: <https://datadriven.io/problems/authors-can-write-many-books-and-books-can-have-many-author-d4ccfd18>

Domain: Data Modeling · Difficulty: medium

## Problem

Authors can write many books, and books can have many authors. Design the book_authors junction table with a composite primary key linking both entities.

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