Hey {{first_name}},
Your blog article about [[topic]] was excellent. Your ebook on the topic was even better. The part about [[section]] was amazing because [[reason]].
But, I had to click around your website quite a bit to find the ebook. Have you ever thought about putting a call to action on the blog post that encourages visitors to download your whitepaper on the same subject?
Here's an article on how and why to do this: [[link]]
Let me know what you think,
[[your name]]