The book is an excellent material for those who create solutions in Azure.
It is a collection of the necessary information, service by service, to better create one's own solutions.
Particular attention is paid to the aspect of security and compliance (which I think is rightly so) and I want to mention the chapter on Azure DevOps (increasingly important from an enterprise perspective) and the chapter on 'tips from the field'.
The latter is not very extensive, but still useful.
The book does not go into too much detail on the topics covered (but I think that's right) as it is a book intended for Azure solution architects and not for those who manage the resources, but there are practical parts that allow for a better understanding of the theoretical part.
The book can also be useful for those who have to take the Azure Architecture certification exam.