The book will be published in the fall in O'Reilly, but the publisher does not claim to sell in Russia. And in the current situation, I decided to share it for free for the entire professional community!" Even if you work with other systems or create your products based on data, then this book will help you deeply understand the anatomy of diagrams, and what requirements for them to make "from the inside." So that your team makes a really flexible solution in the spirit of self-service, and you don't have to pay extra for "aligning signatures" on the diagram.