Using Moodle - Teaching with the Popular Open Source Course Management System by Jason Cole and Helen Foster is published by O'Reilly as part of the Community Press series.
The first edition of the book, written by Jason Cole and released in July 2005, is based on Moodle 1.4. The second edition, released in November 2007, has been updated to cover all the features in Moodle 1.8, such as the new roles and permissions system, blogs, messaging and the database module.
Feel free to download this book and use it as a guide however, it is important to note that it is based on an older version of Moodle than that which we are currently using and as a result, some of the information may not be relevant.
Download the entire e-book here (3.5 Mb): http://content.vcc.ca/media/CID/dl/moodle_tutor/book1/complete-book-Using_Moodle.pdf