Most System Design resources are scattered or too theoretical. This book provides a structured, practical, and interview-focused roadmap to understanding scalable software systems from scratch.
This handbook covers:
• High-Level Design (HLD) and Low-Level Design (LLD)
• Scalability, latency, throughput, and optimization
• REST APIs, GraphQL, gRPC, and backend architecture
• Load balancing, caching, Redis, and CDNs
• SQL vs NoSQL, CAP theorem, ACID vs BASE
• Sharding, replication, indexing, and consistency models
• Microservices, distributed systems, and message queues

Real-world projects and case studies included:
• URL Shortener
• Chat Application
• Rate Limiter
• Notification System
• File Storage System
• Uber, Netflix, YouTube, and Instagram architecture discussions

The book also includes interview preparation strategies, system design frameworks, and practical thinking approaches for students and software engineers.
Whether you are preparing for placements, backend interviews, or improving your engineering fundamentals, this book provides practical system design knowledge in a beginner-friendly format.