The book's content can be summarized as follows:
1. It highlights the importance of using state machines to provide robust interactive animations at 60FPS, along with leveraging dedicated higher-ordered React Native components to improve user experience and app performance.
2. The book discusses the use of declarative Skia drawing capabilities through the @shopify/react-native-skia library, allowing developers to have full control over rendering down to pixel-level precision.
3. It emphasizes the need for optimizing React Native applications using the ultimate guide, which includes experimenting with new architecture and finding ways to reduce memory consumption, CPU usage, and improving overall app performance.
4. The book also touches on the topic of traditional approaches being difficult to implement in core application design, potentially leading to unsatisfied clients and loss of market share.

As for examples of code, the book provides various code snippets and illustrations that demonstrate how to apply these concepts to real-world scenarios, such as:

* Using React Native's state machine capabilities to create interactive animations
* Implementing Skia drawing capabilities using @shopify/react-native-skia library
* Optimizing React Native applications using techniques such as reducing memory consumption, CPU usage, and improving overall app performance


"Ката - это упражнение для мозга. Как музыкант играет гаммы, чтобы улучшить свою технику, так и программист может использовать ката для отработки своих навыков".