Res Commune is an online platform for turning the world's public domain and open access texts into physical books. Search for texts and follow the steps to generate, save and contribute a book to this resource.
browse formatted texts find and make a new book

Hold Tight!

Sadly, the state of publish-on-demand APIs isn't where it needs to be. In the meantime, feel free to download print-ready PDFs of the books below. Check back soon as I find a system for getting these into physical form as cheaply and quickly as possible.
It can't be long now.