Getting started with email newsletter design
If you're new to HTML email design, there are some great guides and resources to help you get started on the right track.
The folks at MailChimp have a free HTML email coding guide and Reach Customers Online have a useful article on how to code email newsletters. We'd also highly recommend reading Campaign Monitor's Email Design Guidelines.
You also might like to look over the email newsletter templates we've collected, instead of starting entirely from scratch.