How to Write a Product Requirements Document (PRD) With a Real Example
Learn how to write a clear, engineering-ready Product Requirements Document (PRD). Includes a 10-part Agile PRD template, Gherkin acceptance criteria, and a full worked example.
Writing & explainers
Product Articles.
Product discovery, experimentation, AI product execution, and product operations.
Product Design for PMs: Wireframes, Prototypes and Usability Testing
Learn product design for product managers: wireframe vs prototype fidelity, Jakob Nielsen's 10 usability heuristics, the 5-user test math, and test scripts.
Product Management OKRs: How to Set Objectives and Key Results
Learn how to write effective Product Management OKRs that measure customer outcomes instead of feature outputs. Includes examples, leading indicators, and scoring math.
Product Manager Interview Preparation: Product Sense, Metrics and Strategy Cases
Ace your Product Manager interview across Product Sense (CIRCLES), Execution & Metrics, Strategy, Estimation, and Behavioral rounds with a full worked case.
Product Manager vs Project Manager vs Business Analyst: Key Differences Explained
Compare Product Manager, Project Manager, and Business Analyst roles across core questions, deliverables, metrics, decision rights, and career transition paths.
Product-Market Fit: Meaning, Metrics, Examples and Validation
Learn how to measure and validate Product-Market Fit using cohort retention curves, the Sean Ellis 40% survey, Superhuman's PMF engine, and unit economics.
Product Metrics Explained: North Star Metric, KPIs, DAU, MAU and Retention
Master product metrics with exact formulas: North Star Metric trees, DAU/MAU stickiness, N-Day vs Unbounded cohort retention, Quick Ratio, and NRR math.
Product Operations Explained: Processes, Tools, Data and Scaling Product Teams
Learn what Product Operations (Product Ops) is, its 3 core pillars (Data, Research, Governance), when to hire Product Ops, and how to calculate Product Ops ROI.
Product Strategy Explained: Vision, Goals, Positioning and Execution
Master product strategy from vision to execution. Learn how to choose target segments, build competitive moats, align unit economics, and avoid fake strategies.