QA — resources

roadmap.sh: https://roadmap.sh/qa

Books

Foundations of Software Testing: ISTQB Certification (Graham et al.) — the standard reference aligned to the ISTQB Foundation syllabus.
Lessons Learned in Software Testing (Kaner, Bach & Pettichord) — context-driven wisdom from veteran testers; sharpens how you think about testing.
Agile Testing (Crispin & Gregory) — how QA fits into agile teams and the whole-team approach to quality.
Explore It! (Elisabeth Hendrickson) — a practical guide to exploratory testing that improves any tester’s instincts.

Test Automation University — free, well-structured courses on Selenium, Cypress, Playwright, API testing and more.
Playwright docs — official documentation and guides for modern end-to-end browser automation.
Postman Learning Center — official tutorials for API testing and collections.
Ministry of Testing — community, articles and courses spanning the whole QA discipline.