Magento - User Tutorials

Configuration:

How to Configure your Magento Store

How to Configure Shipping Methods

How to Configure Payment Methods

How to Manage Taxes

Products and Categories:

How to add Product Categories

How to Add Products

How to setup Product Attributes

How to Review Product Ratings

Misc:

How to use the CMS (Content Manager)

How to Manage your Customers

How to Manage Multiple Stores

How to Manage Newsletters

How to Manage Polls

How to Manage Special Promotions

How to View Reports

An overview of the available Sales Options

How to Manage Search Terms

How to Create and Approve Tags