Preparation
field notes.

Practical answers to the decisions around case prep: what to use, who to practise with, and what to work on next.

The complete case interview guide
/01

Foundations & preparation

  • Make your reasoning visible

    Separate an old secondhand anecdote from useful case habits, with examples of visible reasoning, tailored structure and practice. 4 min read.

  • Repair recurring mistakes

    Diagnose the cause of a recurring case error, choose a targeted exercise and test whether the repair transfers to a new case. 6 min read.

  • A three-week beginner plan

    A 21-day beginner plan with daily tasks, realistic hours, worked exercises, readiness checkpoints and a reduced-time version. 7 min read.

  • How many cases are enough?

    Replace a target case count with a readiness review based on unfamiliar problems, independent feedback and reliable performance. 5 min read.

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/02

Case frameworks

  • Structure without a script

    Build a case-specific structure from the decision, present it naturally and adapt it when assumptions change, with worked examples. 6 min read.

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/03

Tools & resources

  • Build your prep stack

    Choose resources by skill gap, budget and schedule, with named tools and a worked weekly practice plan. 5 min read.

  • Resources for beginners

    A named shortlist of free and paid case interview resources, with a first-week sequence and exercises for each. 5 min read.

  • An undergraduate resource plan

    A practical undergraduate prep plan using campus access, official cases, peer practice and a realistic weekly schedule. 5 min read.

  • A minimal MBB toolkit

    A small preparation toolkit with named resources, a zero-purchase starting plan and clear reasons to add a paid tool. 5 min read.

  • Choose a case coach

    Choose a coach using relevant experience, diagnostic skill, a sample-session scorecard and clear commercial terms. 6 min read.

  • Build a reliable practice group

    Organize a small case-practice group with a rotation, session rules, case ledger and concrete feedback standards. 5 min read.

  • Your first practice partner

    Find your first partner, send a useful invitation, run a complete beginner session and give feedback that improves the next attempt. 6 min read.

  • PrepMatter vs CaseCoach

    PrepMatter or CaseCoach? Compare teaching methods, video feedback, case libraries, fit preparation, peer mocks, assessment tools and the cost of each option. 10 min read.

Explore tools & resources
/04

Firm-specific guidance

  • Find a McKinsey practice partner

    Prepare McKinsey-style case and personal-experience practice with partner criteria, sample sessions and feedback that tests your reasoning. 5 min read.

  • Prepare for a partner intro call

    Clarify the purpose of a partner introduction, prepare a concise story and useful questions, and follow up without overreading the conversation. 5 min read.

  • Find a Bridge to BCG partner

    Understand the Bridge to BCG context, translate academic experience and build a practical partner routine for advanced-degree candidates. 5 min read.

  • Review a BCG first round

    Separate interview observations from outcome guesses, diagnose recoverable mistakes and prepare constructively while waiting for a decision. 5 min read.

  • Prepare for a BCG Vantage case

    Prepare for a BCG Vantage case using the role description, domain evidence, a worked hotel analysis and a clear recommendation. 6 min read.

  • Prepare for the final round

    Prepare for final-round variation with a feedback plan, assumption-change exercises, personal-experience follow-ups and realistic practice. 5 min read.

  • Learn from an offer story

    Read one candidate’s offer story critically, separate reported facts from general rules and turn useful ideas into testable practice. 6 min read.

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Case Interview Field Notes: Plans, Partners and Resources | Case Room