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Partner mode
Pick any of the 278 worked cases. A friend opens the interviewer view, with the script and a five-part scoring rubric, and you speak the case out loud.
Choose a case Free consulting interview prep
Become someone who can solve any business problem.
No frameworks to memorise. Learn how every industry makes money, the moves companies make, and how to build an answer from first principles. The case interview becomes the easy part. Free.
Consulting firms hire through the case interview: a real business problem, talked through out loud. Plain-English lessons for complete beginners, for any firm, in any country.
Everything is free. No sign-in, no card, no email.
Start freeStart free opens the first lesson, about 4 minutes long. Nothing to install.
Try a 10-minute caseProfitability, worked case
Step 2 of 4A coffee chain's profit fell by a fifth while revenue stayed flat. Where do you look first?
Profit
Revenue
Price times volume
Flat
Cost
Fixed and variable
Look here first
Why
This structure comes from the goal: profit is revenue minus cost. Revenue did not move, so split cost and find the line that moved.
Math checked Runs in Partner mode
The learning path
One clear path, one step at a time.
Each step builds on the one before, with worked examples and drills along the way. Skip ahead whenever you already know a step.
- Step 1: FoundationWhat consulting is, the five moves that crack any case, case math, charts and the fit interview.25 modules
- Step 2: Case typesMarket sizing to mergers: how to build the right structure for each kind of question, with worked examples and drills.26 case types
- Step 3: IndustriesHow each sector makes money and the moves companies make, so no case catches you cold.42 industry briefs
- Step 4: Firms and online testsHow each firm interviews, and the digital tests you may face first.15 firms, 7 test formats
- Step 5: Practice until it is routineDrills, full worked cases, and live practice with another person.278 worked cases
Everything a case interview can cover, in one place
350 lessons, 26 case types, 42 industry briefs, 26 firm and region guides, 278 worked cases and 311 glossary terms, counted from the site's content each time it is published. Any firm, any country: profiles of 15 firms, recruiting guides for 11 regions, and 11 sets of regional practice cases.
See every feature, with its own count and a Try it buttonLive practice
Practice out loud, with a real person.
The interview is spoken, so there are two ways to practice with someone else.
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The Practice Exchange
Live case practice with other candidates. You will take turns: you interview your partner, then your partner interviews you. Until it opens, Partner mode works today.
How it will workHonest, dated, checked. You are trusting this site with your preparation, so it shows its work.
Read our honest promiseDated
Every lesson shows the date its facts were checked against sources. The most recent check was on 1 October 2026.
Checked
Every calculation in the worked cases is recomputed automatically by a checking script, and fast-changing facts about firms are marked so you know to confirm them.
Independent and original
No consulting firm endorses this site. The teaching is original, never copied from a firm's real test or a paid case bank.
Honest about outcomes
This is practice, not a promise of an offer. You will not find offer rates or success stories we cannot check.
Start with the first lesson today.
No sign-in and no card. You are learning from the first minute, and your progress saves on this device as you go.