There are thousands of e-books on the Amazon Kindle Store that have content errors. This can be as simple as a series of spelling mistakes or the book might have formatting issues. Starting February 3, 2016 Amazon will begin showing customers a warning message on the Kindle store detail pages of books that contain several validated quality issues. The warning message will be removed as soon as Amazon received an updated file from self-published authors or publishing companies.
Amazon has two stages of the warning system that will go live within a few short weeks. If an e-book only contains a few spelling mistakes, but is still readable, a simple warning message will appear on the details page of that specific title. It will make the average book buyer aware that there are some issues. If the book has bad formatting issues, and basically renders it unreadable Amazon will suppress it and the book listing will be removed.
Link to the rest at GoodEreader