The best open-source book publishing tool for WordPress

Pressbooks is an outstanding plugin. If you’re looking to host a network of open-licensed texts, there’s literally no better solution. It does require a dedicated WP multi-site installation, so do a bit of reading in advance about what it is (and isn’t) and what it does (and doesn’t) do before installing or rating it, but this is a fantastic publishing tool with a ton of potential to make and host electronic books. Thanks Pressbooks developers!