Practical digital guides for professionals.
GuideStack publishes short, focused PDF guides. Each guide has its own page, so you can read what is inside before you decide.
Latest Guides
SQL Interview Playbook
Scenario-based SQL questions and answers that teach you how to think in the interview, not just what to type.
Pricing
Every GuideStack guide is a digital PDF priced between ₹199 – ₹499. Each price is a one-time payment in Indian rupees (INR), shown on the guide's page before you buy.