The following user guides, eBooks, and articles provide a wealth of information and tips to run both your eCommerce business and the features and functionality of Magento Enterprise Edition and Community Edition.

NB: Magento has recently changed all their website and seems to of removed this as a resource so there appears nowhere you can download the User Gudes any more. You can download a partial manual called 'Part I' but i cannot find 'Part 2' etc..