A visual, interview-ready guide to high-level design. Learn the building blocks, a method that works on any prompt, and 25 complete case studies, explained so they actually stick.
Most system design material is either a wall of text or a pile of buzzwords. This book is neither.
Databases are cylinders, queues have stripes, async arrows are dashed — in every one of 160+ figures. Read a diagram once and you can read them all.
Scope → Size → Sketch → Stress → Summarize. A 45-minute playbook every case study follows.
Short questions with answers underneath. Cover, recall, check. Retrieval beats re-reading.
"I'll pick X because of Y. The cost is Z, which is fine here because W."
Every component is introduced when a real bottleneck demands it — so you learn why it exists, not just what it is. Try it below.
Drag through the stages. Each fix solves one problem — and creates the next.
Foundations to distributed consensus, in the order you'll need them.
Each one walked end to end: requirements, numbers, APIs, data model, architecture, deep dives and a 60-second summary.
Tap a page to zoom in. Or grab the free sample: three full chapters.
Two PDF editions: A4 for laptop & tablet, plus a phone edition with large text · yours to keep.
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