AWS Pricing Model Fundamentals: A Practical Guide for EngineersHow on-demand, reserved, spot, and savings-based pricing actually work - and how to design systems that don't bleed money
A deep, practical guide to AWS pricing fundamentals - on-demand, Reserved Instances, Savings Plans, Spot, and data transfer - for engineers who design cloud systems.
Implementing the GoF Design Patterns in JavaScript: A Practical Engineering GuideHow to apply all 23 classic Gang of Four design patterns-creational, structural, and behavioral-using idiomatic, modern JavaScript
A practical, code-driven guide to all 23 Gang of Four design patterns in modern JavaScript, with realistic examples, trade-offs, and best practices.