Visitor Tracking: Hotjar has a heatmap tool — a virtual tool which creates a color-coded representation of how a user navigates your site — that helps you understand what users want, care about, and do on your site. It records visitors and tells you where they spend the most time on your site. You can use it to gather information on your lead generation forms, feedback forms and surveys, and more.
In addition to linking to Letter Shoppe's designs (available on merchandise that is ultimately sold by Redbubble), the email campaign includes an endearing quote by the Featured Artist: "Never compromise on your values, and only do work you want to get more of." Redbubble's customers are likely to agree -- and open other emails in this campaign for more inspiring quotes.
Don't use CTAs to drive people to your homepage, for instance. Even if your CTA is about your brand or product (and perhaps not an offer like a download), you should still be sending them to a targeted landing page that's relevant to what they are looking for and includes an opt-in form. If you have the opportunity to use a CTA, send them to a page that will convert them into a lead.