Case Library

Our deep cases, and an index of everyone else’s

Two shelves. The first is ours: 15 original cases written for this product, each one run with the Interviewer and scored against a rubric. The second is an index of cases that clubs and firms publish for free. We list those and link out. We do not host them, and the pitch for them is honest: they give you volume, and ours give you feedback.


Our deep cases

Every case on this shelf is an original written for this product, and every one carries the same parts:

  • An original prompt written for this product
  • A model structure that opens the case without a memorized framework
  • At least two exhibits with figures that agree with each other
  • Step by step probing from the companion, with voice and captions
  • At least two math checks with fully worked answers
  • A common traps section naming the mistakes candidates make here
  • A strong recommendation example and a rubric debrief that feeds your readiness

Ours, full case

Harbor Bean Coffee

ProfitabilityRestaurants and retailStarterFree

A regional coffee chain with forty stores has watched profit fall for two years while revenue held steady. Find where the profit went and say what you would do first.

Open in the Case Room

Free, with the Interviewer.

Ours, full case

Voltpath Charging

Market entryEnergy and transportStandardPaid

A maker of electric vehicle charging hardware sells to workplaces. It is deciding whether to enter the highway corridor market. Size the opportunity and make the call.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Northwind Outfitters

Revenue growthConsumer retailStandardPaid

An outdoor goods retailer has flat sales in a growing market. Work out which lever matters most and build a growth plan around it.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Meridian Foods

CostFood manufacturingStandardPaid

A packaged food manufacturer faces rising input costs it cannot pass on in full. Find the cost lines worth attacking and protect the ones that hold the brand up.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Loopbox

PricingSubscription softwareAdvancedPaid

A subscription software company prices one tier for every customer. Decide whether a second tier helps or hurts, and set the price gap between them.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Pulseband

Product launchConsumer health devicesStandardPaid

A fitness device maker has a new band that tracks sleep in detail. Plan the launch: first buyers, channel, price, and the number that decides success in year one.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Atlas Freight

M&ALogisticsAdvancedPaid

A regional freight carrier can buy a smaller rival whose routes overlap its own. Value the overlap honestly and decide whether the deal earns its price.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Clearline Clinics

Investment decisionHealthcare servicesAdvancedPaid

An investor is weighing a chain of outpatient clinics. Build the case for and against, and name the diligence question that matters more than the rest.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Sable Air

Competitive responseAirlinesStandardPaid

A low cost entrant just started flying your client's three most profitable routes. Decide what to defend, what to give up, and what it costs either way.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Fernholt Plants

OperationsManufacturingStarterPaid

A plant network runs two factories far below capacity and one above it. Rebalance the work and show the savings without breaking delivery promises.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Cobalt Air

ProfitabilityAirlinesAdvancedPaid

A mid size airline grew revenue last year and still landed at zero operating profit. Find where the profit went, judge the new routes the finance team wants to cut, and set the order of your fixes.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Keystone Castings

CostManufacturingAdvancedPaid

A castings maker runs four plants at very different costs per unit. Decide whether closing the smallest plant and moving its volume pays, and cost the closure honestly, including the costs that do not go away.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Bareleaf

Revenue growthConsumer brandsAdvancedPaid

A direct to consumer personal care brand grew site traffic by half last year while revenue barely moved, and growth has now stalled. Find where the model broke and rebuild the plan around the failing numbers.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Copperline

PricingBusiness softwareAdvancedPaid

A business software company lists one price and collects another, after years of discounting. Restructure the tiers and the discounting together, and show what the new model is worth after the churn it causes.

Open the case

The prompt is public. The full case opens with full access or an active membership.

Ours, full case

Arclight Charging

Product launchEnergy and transportAdvancedPaid

A charging network has budget for one serious launch across three candidate metros. Pick the metro and the build model, and prove both choices with per station economics.

Open the case

The prompt is public. The full case opens with full access or an active membership.


Not sure what to practice next

Ask the Interviewer. He knows both shelves: the deep cases here and the external index below. Tell him where you are and he will point at the next case worth your hour.

Voice ready. Studio voice connects at launch.

I am your interviewer here. I run cases with you, drill your math, and tell you plainly which part of your game needs work. Ask me something, or press Hear it and I will introduce myself out loud.

He answers from the guide's own content and names the stage it lives in. He does not invent firm facts. On member accounts he remembers your year, school, progress, and scores, and you can see and clear what he remembers.


The external case index

402 entries, live now: 391 individual cases listed one by one, and 11 case books and published sets still listed at book level, the ones whose individual case titles could not be verified from the book itself. Between them the entries represent 519 cases, counted entry by entry under the index’s rules: a case printed in two books is counted once, and book level counts are the labeled figures on their cards. Every entry names its source and links out to it. The cases belong to the clubs and firms named on each card. This site is not affiliated with them, and their names appear only to identify the source.

Browse the index Contribute a case

The count on this page is the count of live entries, computed from the index data itself. It grows as books are indexed case by case and as member contributions clear review. We will not print a bigger number than the index holds.