If you have started writing and publishing your own newsletter, my advice is to start writing, and don’t stop publishing. In just the same way that my blogging voice has developed and changed over time…so too has my work with the newsletter. I believe that you do not really find out what you want to write until you start writing. Allow for it to blossom and change.
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It is interesting to compare writing a newsletter with a blog. There is a deliberate practice associated with it. With this comes a continuous endeavour to refine the process.