This was a quick read and a good round-up about the usual topics related to scaling. I especially like the fact that organisational scaling is also part of it and about many of the risks related to cloud. Bonus: I think I finally understand what Edge computing is all about and I found the part about the different adoption rate of cloud-based products based on geography quite interesting.
Architecting for Scale: How to Maintain High Availability and Manage Risk in the Cloudvon Lee AtchisonO'Reilly UK Ltd.