Found this Infographic through Hubspot's blog. It's basic, it's built on common sense and simply a good reminder.
The Infographic is created by Backlinko and gives you guidance on how you actually get people to give over their information to receive your blog posts. It covers a few things you can try with your audience, and hopefully some of them will stick. Enjoy the Infographic "12 ways to get more blog subcribers"!