I contacted Amazon, their Kindle Direct Publishing (KDP) section, about the problem I was having with their ebook preview limit of 10%.
That limit made it impossible to display any content of my ebooks for children so viewers can view on their Kindle devices what they would be purchasing.
In a matter of weeks they solved the problem. All my Kindle ebooks for children on Amazon have a little bit of my content for purchasers to see.
You can check out my Kindle ebooks on Amazon here.