Google says: “Whether you’re new to AdSense or have been using it for years, there’s always more to learn”. If you are a webmaster or publisher and use Adsense, then you will always be concerned about the website traffic and Adsense account health. Because they ban publishers a lot. They have been doing it ruthlessly. They can ban your Adsense account permanently and they can decrease your website traffic. You have to comply rules set by them if you want to run an online successful business. If you go through webmasters quality guidelines and Adsense policies, those will give you a headache. However lately some good news and tools have been rolling out by Google, which will make your life easier to understand all the quality guidelines and policies.