E-Marketing Strategy: E-mail Marketing: 
An Old Workhorse That Still Pulls Its Weight

Promote your new newsletter on your site, on your social media accounts, on your blog, in your e-mail signatures, and everywhere else—including in your print publications. A crafty use of a Quick Response (QR) code (En.wikipedia.org/wiki/QR_code) in print could make it easy for people to sign up for your newsletter while reading your books.