Free case interview prep
Crack the case interview.
Build real business acumen, not memorized frameworks. Solve any case from first principles.
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Free. No sign-up.
Why So What Club
Business acumen, not frameworks
Learn how companies really make and lose money. Then any case makes sense, with no framework to memorize.
Real industry knowledge
How each industry makes money, from value chain to unit economics.
The moves companies make
Mergers, pricing and integration, and the numbers to check.
For the job, not just interviews
Skills you keep using at work. Free, for anyone, anywhere.
Everything you need
- 376 lessons
Short lessons
How business works, in plain English.
- 45 briefs
Industry briefs
How each industry makes its money.
- 20 moves
Strategic moves
Mergers, pricing and market entry.
- 307 cases
Worked cases
Practice cases, solved step by step.
- 10 drills
Practice drills
Case maths, sizing, charts and structure.
- 26 guides
Firm and region guides
How each firm and region hires.