The Case Prep Playbook
Short, dense courses on everything the interview tests. Read the concept, see it drawn out, then drill it until it sticks — with live AI-graded practice built into every lesson.

The Case Interview Method
The whole case method, start to finish. How to clarify, structure, lead with a hypothesis, do the math cleanly, and close in 60 seconds, with the exact phrasings interviewers reward.

Market Sizing
Top-down vs bottom-up, the 5-step method, segmentation, sanity checks, and two fully worked estimates end to end.

Case Frameworks
The eight structures that cover 80-90% of cases: when to reach for each, how to customize the branches, and worked issue trees for the ones interviewers actually test.

Profitability Cases
The profit tree, revenue and cost decomposition, the margin bridge, 4Cs root-cause logic, and a fully worked $850M mini-case. It's the most common case type at MBB.

Case Math Essentials
The six formula families, the mental-math shortcuts, and the unit-economics benchmarks that cover ~90% of case calculations. No calculator allowed, and the arithmetic is fully worked.

Structured Brainstorming
Turn 'what ideas do you have?' into MECE buckets you can size and prioritize, not a loose list.

Behavioral & McKinsey PEI
The 4 PEI dimensions (2025 names), STAR upgraded for consulting, an 8-12 story bank, the follow-up ladder, and the red flags that sink strong cases.
