The dreaded email list...every successful author speaks of having an email list. Catch 22? Perhaps it would be better to speak of how to get an email list. It's what eludes almost all of us. There's an e-book in this!

Actually, I just found this one. https://www.amazon.com/Ways-Build-Your-Email-Marketing-ebook/dp/B00CJYSLSI#customerReviews