Buttondown Documentation
CTA stands for 'call to action'. It is a marketing term used to describe a prompt that encourages a user to take a specific action. A CTA can be a button, a banner, a link, or any other type of graphic or text element that prompts a user to take a specific action.
As you might imagine, many newsletters are rife with CTAs! The two big genres of CTA are:
You might also be interested in our long essay on 'lead magnets', which are a specific type of CTA that offers a free resource in exchange for an email address.