The Missing Manuals are world famous technology publications from O'Reilly. These books product overview, pointing out what a particular product is good for. Successive chapters dissect the entire product piece by piece giving users a real-world perspective. Thousands of people accross the world have actually made Missing Manuals the essential companion for some of today's most popular software. Some of the bestselling Missing Manuals include the ones on Photography, Flash, iPod and many more.
Recently, O'Reilly launched the Wikipedia Missing Manual. Wikipedia may be the biggest group writing project ever, but the one thing you won't find in the comprehensive online encyclopedia is easy-to-follow guidance on how to contribute. Wikipedia: The Missing Manual helps beginners avoid blunders and gets people sounding like a pro from the first edit.This book sells 30 USD but has been made available to the world for free by the authors on wikipedia itself. Not only this, users can edit the book, add - subtract information as they like as it has been released under the GNU License.