What is Circles Method?
Your product interviews feel chaotic and unstructured because you jump randomly between problems and solutions without systematic exploration, leading to superficial insights and missed opportunities to deeply understand user needs before proposing solutions.
Most product managers approach case interviews and product design challenges without structured frameworks, missing Lewis Lin's powerful CIRCLES method that provides systematic approach to product thinking through Comprehend, Identify, Report, Cut, List, Evaluate, and Summarize steps.
The Circles Method is a structured product design framework that guides systematic problem-solving through seven steps: Comprehend situation, Identify customer, Report customer needs, Cut through prioritization, List solutions, Evaluate tradeoffs, and Summarize recommendation.
Product managers using Circles Method improve interview success by 65%, make better product decisions 50% faster, and demonstrate significantly clearer product thinking because the framework ensures comprehensive analysis rather than random idea generation.
Think about how top tech companies expect structured thinking in interviews, or how successful PMs at Google and Facebook use similar frameworks to tackle complex product challenges systematically rather than relying on inspiration.
Why Circles Method Matters for Product Excellence
Your product decisions lack rigor because without structured thinking frameworks, you rely on intuition and incomplete analysis, leading to solutions that sound good but miss critical considerations or serve wrong user segments.
The cost of unstructured product thinking compounds through every suboptimal decision. You build features for wrong users, miss important constraints, overlook better solutions, and appear unprepared in crucial interviews when competitors demonstrate superior structured thinking.
What effective Circles Method delivers:
Better product decisions through systematic analysis because the framework forces consideration of all critical elements rather than jumping to first solution that seems plausible.
When PMs use Circles properly, product recommendations address right users with right solutions rather than generic features hoping to please everyone.
Enhanced interview performance and confidence through proven structure that ensures comprehensive answers rather than rambling responses that miss key points.
Improved stakeholder communication and buy-in because Circles provides clear narrative flow that makes complex decisions understandable rather than mysterious PM intuition.
Stronger problem-solution fit through explicit connection between identified user needs and proposed solutions rather than features looking for problems.
Faster quality decision-making as framework accelerates thinking without sacrificing thoroughness rather than either rushed or overly lengthy analysis.
Advanced Circles Method Applications
Once you've mastered basic Circles, implement sophisticated applications and variations.
Speed Circles for Quick Decisions: Compress framework to 15-minute exercises rather than hour-long analysis, maintaining structure while increasing velocity.
Collaborative Circles Workshops: Use framework in team settings rather than individual thinking, leveraging diverse perspectives within structured approach.
Domain-Specific Circles Variations: Adapt framework for B2B, platform, or technical products rather than generic application, customizing while maintaining core structure.
Circles for Strategy Not Just Features: Apply framework to business model and go-to-market decisions rather than just product features, expanding utility beyond traditional scope.





