This repository contains raw data, which are available on the http://allperlbooks.com website.
If you'd like to make a contribution to the data, feel free fixing it and sending a pull request. It's enough to only update the books.yml file, not caring about any constraints checks against authors.yml or publishers.yml.
Would you like to upload a book cover completely missing on the site, you are welcome to do that here: http://allperlbooks.com/upload.
Please note that all the changes made on the site will appear in this repository automatically but the opposite process is (semi-)manual.