“The beauty of email is that you are not attached to anything. If you decide to change course after a few editions, you can do so.”
If you don’t yet have your own newsletter, this will help you get one started and if you do have a newsletter it will help you clarify what you’re doing with it.
Frank Meeuwsen analyzes the 10 most-used newsletter formats and shares examples of each including curated links, promotional, experimental, and pop-up newsletters.
Related: How I write my newsletter.