The library
All 26 books in the online reader — with instant topic filters and an interview drill mode inside every book. Chapter one of every book is free; read everything with a subscription — $60/year, or own any book via Leanpub.
Teach an AI coding agent to drive a real browser. The SKILL.md format, the Playwright CLI, first-party Test Agents, and the token economics that made skills beat MCP.
Stop writing every test by hand. Direct AI like an editor-in-chief — prompt, generate, curate — without ever shipping a test you don't understand.
Build testing agents that observe, reason, act, and evaluate on their own — with the guardrails that keep autonomy from becoming chaos.
Turn OpenAPI schemas into exhaustive test suites, wire Pact contracts between services, and let semantic fuzzers hunt the bugs random ones miss.
Break things on purpose, before production does it for you. Load tests that mirror reality and chaos experiments you can defend to management.
The deploy is not the finish line. Use logs, traces, metrics, canaries, and feature flags to keep testing after release — where it counts most.
Your AI features are an attack surface. Learn to break them before someone else does — from prompt injection to retrieval poisoning, with hands-on labs.
Infrastructure is code now — which means it can be tested before it becomes a 3 a.m. incident. Terraform, Kubernetes, Helm, and policy-as-code.
24,000 device models, two ecosystems, one strategy. Device farms, cross-platform frameworks, and the mobile-only failure modes desktop never taught you.
Pixels and people: catch the regressions users see and the barriers some users can't get past — with AI triage that kills screenshot noise.
Before automation, there is thinking. Test design, exploratory testing, and bug reports that get fixed — the bedrock the rest of QA stands on.
Python, JavaScript, and TypeScript taught side by side — every concept in all three languages, every example pulled from real QA work.
From your first locator to a production framework the whole team trusts — auto-waiting, fixtures, network mocking, and the end of fragile tests.
From clicking Send in Postman to API suites running in CI — REST, GraphQL, and gRPC, with the HTTP fundamentals that make it all make sense.
The bugs live in the data. From your first SELECT to migration testing, NoSQL, and GDPR-compliant masking — with exercises all the way.
From commit to confidence: pipelines where tests gate what matters, run in parallel, and tell developers the truth fast.
Beyond push and pull: branching strategies, conflict resolution without fear, bisecting your way to the guilty commit, and PR reviews that matter.
Make quality visible. Jira and TestRail workflows, 50+ ready JQL queries, dashboards executives actually read, and traceability that holds up.
When production breaks, the answer is in a log file on a server somewhere. grep, curl, jq, Bash, and Docker — your survival kit, with 100 exercises.
Quality in every sprint, not a phase at the end. Sprint planning, the definition of done, three amigos, and metrics that fit two-week cycles.
The most technically brilliant QA engineer is ineffective if nobody listens. Bug diplomacy, blocking a release, and talking to executives.
Move from running tests to leading quality: strategy aligned with business goals, automation ROI you can defend, and metrics that drive decisions.
Multiply your impact: build teams, grow a quality-first culture, mentor the next generation, and lead from the IC or the management track alike.
Documents that drive action: test plans people read, bug reports that get fixed, RCAs that prevent repeats, and docs that outlive team turnover.
Everything in the series, deployed into the interviews that decide your career — STAR stories, live exercises, negotiation scripts, first 90 days.
The QA field manual: the entire career arc, from your first two weeks on the job to strategic leadership, told through patterns and anti-patterns.Tile view built with Bookatlas — our open-source engine for turning markdown books into zoomable tile atlases.