By default, if you have your Permalinks set correctly, you will have an archive page for book reviews at yourdomain.com/book-review/. How this displays is dependant upon your theme. If you want to create your own archive page, you will need to create and build your own archive-book-review.php file. No file is provided because different archive templates will be structured differently based on the theme you are using. If you want a custom archive page for book reviews, you can start by copying the archive.php file in your theme and adding whatever customizations you want to that archive template. This will automatically override the existing archive template that’s built into your theme which the Book Review plugin attempts to modify to display information specific to the books.
