Regarding my book on duality and its illegal sellers

A year ago I published the first version of my book "Duality Revolution". Since then the book has been regularly updated and new staff has been regularly added. Nevertheless, some people that bought the book long time ago scanned it into a PDF file and illegally sale its outdated versions. Don't buy them. The latest and greatest version is only available on Amazon:
https://www.amazon.com/Duality-revolution-mechanisms-revolutionizing-technology-dp-B094ZQ1KDR/dp/B094ZQ1KDR