First of all, if you are wondering what Remarketing is, here is a brief explanation to help bring you up to speed.
What Is Remarketing?
Remarking is a pretty straightforward process to understand, and you've probably come across it yourself as you browse the web day or night. Let's say that you've been researching a new purchase online - for example, a Chromebook (which I'm writing this post on actually). After having a good look at the product, you decide against making a purchase at that time. So, you navigate away from the page and go back to whatever it was you were doing before looking up the Chromebook.
But, something is different this time - as you surf the web, you see Chromebook adverts following your every move.
How Does This Happen?
Well. the easy way to explain it is that the website vendor would be tracking website page visitors and then would use the Google Display Network (sites that show Google Ads) to re-target these visitors with relevant adverts after they leave the site and browse through the wider web.
Here is a video from Google that explains how the process works in more detail:
"But what if you could double, or even triple, this conversion rate?"