If you are new to Google Docs, the first step will be to create a new Google Docs Account. If you already have a GMail account, you can skip this step and use your GMail account to access Google Docs. The following screencast will take you step-by-step through the process of creating your personal account.
Once you have created your account, you can view any of the following screencasts in any order. Each is designed to cover/demonstrate a particular feature or aspect of Google Docs. The first one below covers Word Processing. Feel free to explore the others at YouTube.
Still wanting more? Try the link below for some additional instructional videos found at YouTube.com.