Working in academy taught me one huge concept about editorial world. Some publishing houses that work for profit tend to focus more on the quantity than on the quality.<p>For some months, I've been amazed at how many open books written by normal people (self-published resources) that need to be discovered. So I was wondering: is there anywhere a list of "open" books? Let's give some authors some notoriety.<p>A books/resource to be defined as open should be:<p>- a good quality content which is hard to achieve, especially when you do not have money to hire editors;<p>- free as PDF/HTML, but the author can still have donations, or can be paid for hardcopies;<p>- anyone can contribute to writing or editing! "source code"/content of the book is hosted in a Git instance;