Exploring the critical world of ACID transactions and reconciliation.

Solving the "double-booking" problem and handling concurrency.

Deep diving into the internals of systems like Kafka.

Many developers share their "takeaways" from Xu's chapters on GitHub, which can serve as a great condensed study guide. How to Study Volume 2 Effectively

Use tools like Excalidraw or Miro to replicate the diagrams in the book. Visual memory is vital during an actual interview.