FAANG System Design Pattern Handbook

Most system design prep is just memorizing architectures. You study Uber, you get asked something slightly different, and you blank.

This covers 50 patterns that actually repeat across interviews — caching, sharding, queues, consistency trade-offs — with the trade-offs that matter and the mistakes candidates make when they know the pattern but not when to use it.

What's inside:

• 50 system design patterns with interview signals
• Trade-offs and common mistakes for each
• How patterns relate to each other
• Real-world examples
• Full designs: Instagram Feed, WhatsApp, TinyURL
• Quick revision cheat sheets

Three full case studies walk through how patterns combine in practice. The cheat sheets are for the night before.