CPV or Cost per View is one of the most common paying models in online advertising. In fact, CPV is the default method in AdWords when it comes to paying for TrueView video ads. Basically, the advertiser pays for each view of their video. In some cases, the same goes for other types of interactions, like clicks on overlays, banners, or cards. The main difference between CPV and other advertising systems is that it focuses only on deliberate viewers attention. This means that the advertiser will pay only when the user has watched their video intentionally. As a way of ensuring that, Google AdWords charges only when the promoted video is watched for at least half a minute, or when a deliberate interaction is made (clicking on an embedded link, for example).