I've been a professional developer in various languages over the last two decades and there has always been a gap in programming books at the point where you've learnt all the syntax and APIs but then need to know how to actually put a big system together properly. There are books about design patterns and about XP and Agile but I have always been missing that book or two that says "This is how to put together a real system with real code in the real world."
This book is one of the few out there that fulfil that purpose and the only one I know of using Python. You can use it by your side as you're working and contemplating architecture decisions - this isn't a hand-wavy book that you read on holiday.
The authors work for an international furniture company and use examples from their work which are real but also comprehensible - you can understand that they want to improve delivery times and follow their thinking as they do it.
I recommend this book to anyone who has some experience with Python and wants to build robust and maintainable systems and wants to spend less time wondering how to organise their thinking.
Personally, I'm making the switch to Python from decades of PHP and this has been a great help in learning more architecture (that is usable in any language) and learning how to do things well in Python.