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If you need the full, updated text with all 13 detailed solutions (including Proximity Service, Nearby Friends, and Google Maps), the official versions are available at: Amazon (Kindle & Paperback) official listing for Volume 2 ensures you get the latest errata and updates. ByteByteGo Digital Version : You can access a digital subscription

While Volume 1 covers foundational building blocks (Rate Limiters, Key-Value Stores), Volume 2 focuses on complex, real-world case studies: Location-Based Services : Designing a Proximity Service (Yelp-like) and Nearby Friends Mapping Systems : Deep dive into Google Maps , including pathfinding and map tiles. Distributed Systems : Designing a Distributed Message Queue (like Kafka) and a Metrics Monitoring/Alerting System Financial Systems Payment Systems Digital Wallets , focusing on consistency and reliability. : Large-scale storage solutions like S3 (Object Storage) processing. Recommended Study Framework