Marketers selling their Kindle courses often prove they are not successful, but hope you are too stupid to realize it
Many marketers that promote their own Kindle course, shoot themselves in the foot. By showing you what they hope you will consider proof of their earnings, often gives you the proof that they are not.
Don’t pay 30% tax in the US if you are a non-US Kindle Publisher. Provide Amazon with the correct tax forms – it’s easy.