Also, I felt that books are a magnificent way to promote one's ideas, and even gain some cash. With this motivation at mind - I have been working hard at writing, conceptualizing, and managing my books on Amazon. These guys may be tricky at times. It took me several weeks to understand the right approach for getting things done.
For example, my books would not have their Number of Pages displayed, until I had finally messaged Amazon support directly. They have a form for this specific request, but it seems redundant. Another example, is changing the price of an eBook, and repeatedly releasing it updated, thus it may eventually cause the release to be bugged - and not work in diverse ways. Be warned. Enjoy :)