Join us tomorrow Friday 30/3/2012 and celebrate The Document Freedom Day .At Cairo hackerspace we planned to build a diy book scanner to give it to the Wikipedia Arabic content teams. So we find this a good chance to support the Document Freedom Day too.We will celebrate DFD 2012 at Cairo Hackerspace by building the diy book scanner and talks explaining document freedom and open source in general. The invitation is open and free for anyone who want to help building the scanner or have other ideas like giving some related talks or workshops.