Case Interview Guides
Practical guides for consulting interview preparation. No fluff, just useful information.
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How CaseStar Works
From first session to interview ready. See how intake, coaching, drills, voice practice, and feedback come together.
8 min readCase Interview Prep: Complete Guide
Everything you need to know about case interview preparation. What they test, how to practice, common mistakes.
20 min readLast-Minute Prep: 48-72 Hour Guide
Interview in 2-3 days? Priority-stacked prep when time is critical. What to focus on and what to skip.
10 min readFirm-Specific
McKinsey Case Interview Guide
How McKinsey interviews differ. Interviewer-led format, PEI deep dives, and the Solve game.
15 min readMcKinsey Solve Assessment Guide
Deep dive into the McKinsey Solve game. Red Rock Study, Sea Wolf modules, and what actually helps with preparation.
16 min readBCG Case Interview Guide
BCG interview format, the Casey chatbot assessment, and candidate-led case practice.
15 min readBain Case Interview Guide
Bain interview process, SOVA assessment, and what makes Bain interviews unique.
15 min readBain SOVA Assessment Guide
Complete guide to the Bain SOVA test. Numerical, verbal, and logical reasoning sections plus personality assessment.
14 min readDeloitte S&O Case Interview Guide
Deloitte Strategy & Operations interview format, the Immersive assessment, and group case studies.
14 min readEY-Parthenon Case Interview Guide
EY's strategy arm. PE-focused cases, group case interviews, online assessments, and transaction advisory expertise.
15 min readRoland Berger Case Interview Guide
Europe's largest strategy firm. Candidate-led cases, written case interviews, and European market focus.
14 min readStrategy& (PwC) Case Interview Guide
Strategy& interview process, PwC integration, and what makes this former Booz & Co. unique.
14 min readOliver Wyman Case Interview Guide
Known for math-heavy cases. Financial services focus, quantitative rigor, and how to prepare.
14 min readSkills
Case Interview Frameworks
When to use frameworks, when to build custom structures, and how to avoid the framework trap.
18 min readMental Math for Case Interviews
Techniques for fast calculations under pressure. Percentages, large numbers, and estimation.
12 min readMECE Framework Explained
Mutually Exclusive, Collectively Exhaustive. What it means and how to apply it.
10 min readBehavioral & PEI Interview Guide
McKinsey PEI and behavioral interviews. How to structure stories and what interviewers look for.
15 min readMath Narration & Error Recovery
How to narrate calculations out loud. The 4-step framework for clear math communication and recovering from mistakes.
12 min readSolo Case Practice Guide
How to practice cases without a partner. Component drills, self-casing, recording yourself, and voice practice.
14 min readSynthesis & Recommendations
How to structure your closing recommendation. The ARRN framework for confident, structured conclusions.
14 min readInterview Anxiety & Performance
Managing nerves under pressure. Science-backed techniques for pre-interview calm and mid-case recovery.
14 min readCase Types
Market Sizing Guide
How to estimate market sizes. Structure, assumptions, and common market sizing questions.
14 min readMarket Entry Case Guide
How to evaluate market entry decisions. Market attractiveness, competitive analysis, and entry modes.
14 min readGrowth Strategy Case Guide
The Ansoff Matrix and growth options. Market penetration, product development, expansion, and diversification.
16 min readM&A Case Interview Guide
Mergers and acquisitions cases. Strategic rationale, synergies, valuation, and integration planning.
16 min readPricing Strategy Case Guide
The Pricing Triangle framework. Cost-based, competitive, and value-based pricing approaches.
15 min readOperations Case Guide
Process improvement and efficiency cases. Bottleneck analysis, metrics, and improvement levers.
15 min readProfitability Case Guide
How to approach profitability cases. Revenue and cost analysis, common patterns.
12 min readComparisons
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