The Effective CISSP Series

I am publishing my second book on Amazon in both Kindle and paperback versions. The following are some KDP notes:

Kindle

There are two formats: print replica and flowable. This book is flowable that is comprehensively supported on Kindle platforms, including the cloud reader.
However, flowable layouts may vary on different platforms and unpredictable. Flowables should be designed with the mindset of web pages.
Many potential readers reported they cannot buy Kindle ebooks for a variety of reasons. I think it is the copyright across countries that limits the availability of Kindle.
Kindle releases beta support for Chinese books. However, the paperback is not supported yet. Besides, Chinese books are edited and published using Microsoft Word instead of Kindle Create.

Paperback

The cover page design for printing takes a lot of time. The number of pages and the weight or thickness of the paper determine the size of the spine. Every book needs recalculation.
I think it is a good design strategy that the background of the spine shares the same color as one of the front and back covers.
Authors outside the US spend more time to verify the proof copy. I verify my proof copy in the local printing workshop. However, the weight of the paper is not the same as the one used in the Amazon printing workshop.

When authors receive a notification of congratulations from Amazon, it still takes a couple of days for the book to be globally available.
Gift books are not working outside the US. It’s annoying.
COVID-19 hinders the delivery of paperbacks.