If you are looking for an intro to developing cloud apps, then this is a good read. More important than the technology used are the concepts it teaches. The intro claims that each section can be read independently; though if you are new to development (in general), I do suggest it's best to read at least the first 3 chapters before ANY OTHERS to get a feel for automation, source control and continuous integration respectively.
Seriously, I have lost count of how many products I've been pulled into during my career which have completely ignored one of those things. It just makes maintaining / decommissioning / fixing the product that much harder afterwards.
Also, bear in mind that this book was published in 2014, so reading it almost 10 years later, you may find some examples that may be outdated. Again though, the more important thing are the concepts it teaches.