A practical online book that teaches the fundamentals of ray tracing by guiding learners through building a simple 3D renderer from scratch.

A guide to system design concepts covering scalable architectures, distributed systems, databases, networking, reliability, and large-scale software design.

A practical book that teaches test-driven development by building a web application with Python and Django, emphasizing testing, development workflows, and incremental implementation.

An interactive introduction to fragment shaders and GLSL that teaches graphics programming through visual examples, mathematical concepts, and hands-on shader experiments.