Booki is a free service for the creation of books: real paper books that look good and you can hold in your hand. You can also use Booki to produce books in the form of epub (electronic books), PDF, .odt (Open Office / Open Document files), web pages and more. Booki is designed to help you produce books, either by yourself or with others.

Booki is also a social environment where you can discuss your views about producing books, seek assistance from others, look for projects to contribute to, seek others to help you, translate content and publish completed works. Booki supports the rapid development of content.

You can use Booki to develop content in 'Book Sprints' - intensive collaborative events where 5-10 people focus on writing a book in 3-5 days. These collaborators might be in the same room or located around the net, in either case working together simultaneously to produce a book rapidly. Book formatted PDFs can be generated in 2-5 minutes, and then uploaded to your favourite Print on Demand service.

Whether you are collaborating, writing solo, rapidly developing books or taking your time, when you have worked with Booki you will never think of publishing the same way again. Booki is developed by FLOSS Manuals and is Free Software licensed under the General Public Licence (GPL 2+). This means that it can be freely downloaded, re-used and customised.