The Kellogg Casebook 2024: all 36 cases, and how to practice them out loud
The Kellogg Consulting Club casebook is one of the most passed-around case books in MBA recruiting. The 2024 edition runs to 439 pages and holds 36 practice cases, two of them winners of the club's own case competition, plus sample frameworks, a case math section and 24 short industry primers.
This page is an index, not a copy. It lists every case by type and industry, shows the order the club suggests working through them, and marks the 13 cases you can run tonight with an AI interviewer that puts the exhibits on your screen. The case prompts, exhibits and answers stay in the book.
- Edition
- 2024
- Pages
- 439
- Practice cases
- 36
- Live with an AI interviewer
- 13
What is in the Kellogg 2024 casebook
- 36 cases
- Market entry, profitability, operations, growth, M&A and opportunity assessments, each with a prompt, clarifying information, exhibits and an interviewer guide.
- Sample frameworks
- Starting structures for the common case types, meant to be adapted rather than recited.
- Case math
- Tips for speed and accuracy on the arithmetic that most cases turn on.
- 24 industry primers
- One page each on sectors such as airlines, healthcare payers, medical devices, private equity, retail and utilities.
- How to use the book
- A suggested curriculum, a guide to reading each case page, virtual interview tips, fit questions and a feedback form.
Six cases are marked as McKinsey-style interviewer-led, where the interviewer holds the order of questions: Bubbly LLC, DigiBooks, Garthwaite Healthcare, Mustard Clinic, Rotisserie Ranch and Sosland Sports. The others carry no format label.
The club's curriculum starts with easy cases in September and October (DigiBooks, Dark Sky, Zephyr Beverages, Sosland Sports), moves to moderate ones in November (Maine Apples, Chic Cosmetology, Tacotle) and saves the hard, framework-breaking ones for later (Orrington Office Supplies, Garthwaite Healthcare, Salty Sole, Mustard Clinic, Bubbly LLC, Kellogg Capital, Swagger Llamas). It mixes in cases from other schools' books, and it says plainly that one casebook is not enough on its own.
Five cases to start with
Roughly easy to hard, following the club's own curriculum. The ones marked live run tonight with an AI interviewer; the others need a partner or a case you build yourself.
- 1 Run live →
DigiBooks
Easy in the club's curriculum and interviewer-led, so it is a clean first rep of the full arc: framework, segments, a channel brainstorm, channel math and a recommendation.
- 2 Run live →
Dark Sky
Also on the easy list. New-product economics with cannibalization, which is a trap worth meeting early.
- 3 Run live →
Chic Cosmetology
Moderate. A breakeven that only works if you set the math up before you start multiplying.
- 4 Run live →
Garthwaite Healthcare
Hard and interviewer-led. A healthcare payer cost case with a commission redesign at the end.
- 5 Run live →
Kellogg Capital
Hard. Converting performance fees into management fees is the kind of unit conversion candidates drop under pressure.
Every case in the Kellogg 2024 casebook
As the club's own index lists them. The club curriculum column shows where the club places a case in its suggested easy-to-hard order; cases outside the curriculum are blank.
| Case | Type | Industry | Format | Club curriculum | Practice |
|---|---|---|---|---|---|
| Avalon | Opportunity assessment | Energy, utilities and mining | Run live → | ||
| Busch's Barber Shop | Market entry | Hospitality and leisure | Run live → | ||
| Bubbly LLC | Market entry | Retail and CPG | Interviewer-led | Hard | Run live → |
| Chic Cosmetology | Market entry | Hospitality and leisure | Moderate | Run live → | |
| Chicouver Cycle | Market entry | Transportation and logistics | Run live → | ||
| Dark Sky | New product | Aerospace and defense | Easy | Run live → | |
| DigiBooks | Market entry | Retail and CPG | Interviewer-led | Easy | Run live → |
| Evanston Eagles | Operations | Media and entertainment | Build it | ||
| Events.com | Profitability | Technology | Run live → | ||
| Garthwaite Healthcare | Profitability | Healthcare | Interviewer-led | Hard | Run live → |
| Health Coaches | Operations | Healthcare | Run live → | ||
| Healthy Foods | Growth strategy | Retail and CPG | Run live → | ||
| High Q Plastics | Profitability | Engineering and construction | Run live → | ||
| Kellogg Capital | Growth strategy | Financial services | Hard | Run live → | |
| Kellogg in India | Market entry | Government and public sector | Build it | ||
| Kellogg Klogs | New product | Retail and CPG | Build it | ||
| Lobster Woman | Financial decision | Fisheries | Build it | ||
| Maine Apples | New product | Agriculture and food | Moderate | Build it | |
| Money Bank Call Center | Cost reduction | Legal and professional services | Build it | ||
| Montoya Soup | Cost reduction | Retail and CPG | Build it | ||
| Mustard Clinic | Operations | Healthcare | Interviewer-led | Hard | Build it |
| Orrington Office Supplies | Operations | Engineering and construction | Hard | Build it | |
| Plastic World | Mergers and acquisitions | Private equity | Build it | ||
| Rotisserie Ranch | New product | Retail and CPG | Interviewer-led | Build it | |
| Salty Sole Shoe | Profitability | Retail and CPG | Hard | Build it | |
| Sosland Sports | Market entry | Hospitality and leisure | Interviewer-led | Easy | Build it |
| Swagger Llamas | Growth strategy | Technology | Hard | Build it | |
| Tacotle | Profitability | Agriculture and food | Moderate | Build it | |
| Vitality Insurance | Profitability | Financial services | Build it | ||
| Wildcat Wings | Operations | Transportation and logistics | Build it | ||
| Wine & Co | Opportunity assessment | Agriculture and food | Build it | ||
| Winter Olympics Bidding | Opportunity assessment | Entertainment and media | Build it | ||
| Zephyr Beverages | Mergers and acquisitions | Retail and CPG | Easy | Build it | |
| Zoo Co | Mergers and acquisitions | Financial services | Build it | ||
| Andrew's Simple Delights | Profitability | Retail and CPG | Build it | ||
| Pandora Coaching | Opportunity assessment | Education services | Build it |
Case names, types and ratings are from the Kellogg Consulting Club, Northwestern 2024 casebook. Descriptions on this site are our own.
Practicing Kellogg 2024 cases out loud
A casebook shows you the exhibit next to the answer. A live case does not, and that is the whole difference. The 13 cases marked live above run as voice interviews: the interviewer gives the prompt, answers your clarifying questions from the casebook's own information, puts each exhibit on your screen when the case reaches it, waits while you do the math, and pushes back on your recommendation with something you said.
The report compares your numbers with the casebook's answer key and scores structure, math, judgment and communication. Every live case runs interviewer-led, even where a book writes it interviewee-led, so for candidate-led drills a partner who makes you ask for each piece of data is still the better rep.
The rest of the book
For the 23 cases marked "Build it", the open-source case-interview-builder skill turns the casebook pages into the same kind of live case: an exhibit deck, an interviewer-led script with the answer key hidden from you, a weighted rubric and a study guide. It runs in Claude Code, Codex, Cursor and other agents with the Tough Tongue MCP server.
Or run them the classic way with a partner, swapping interviewer and candidate. Giving a case teaches you almost as much as taking one, because you see how much of the score is decided by the first two minutes.
Other casebooks and guides
Wharton 2024-25 casebook
18 cases, 9 live
Booth 2024-25 casebook
45 cases, 3 live
Fuqua 2023-24 casebook
18 cases
Tuck 2024 casebook
12 cases
McKinsey practice cases
McKinsey's own samples and where to drill each question type
All 38 live cases
Case interview prep hub
Guides: MBB case interview prep with AI · the best AI case interview tools · practicing cases by yourself
Frequently asked questions
How many cases are in the Kellogg 2024 casebook?
36. The detailed contents list 34 cases from Avalon to Zoo Co, plus Andrew's Simple Delights and Pandora Coaching, the two winning entries from the club's 2023 case competition. The 439-page book also has sample frameworks, a case math section and 24 industry primers.
Where can I find the Kellogg casebook PDF?
The Kellogg Consulting Club writes it for its members, and copies circulate among MBA consulting clubs and prep communities. We do not host it. If you are at a school with a consulting club, ask the club, since most keep a library of other schools' casebooks. You can practice 13 of its cases on Tough Tongue AI without the PDF.
Are Kellogg casebook cases interviewer-led or interviewee-led?
The 2024 contents mark six cases as McKinsey-style interviewer-led: Bubbly LLC, DigiBooks, Garthwaite Healthcare, Mustard Clinic, Rotisserie Ranch and Sosland Sports, and leave the others unlabeled. On Tough Tongue AI, all 13 Kellogg cases run interviewer-led, with the exhibits shown when the case reaches them.
Which Kellogg cases should I start with?
The club's own curriculum starts with DigiBooks, Dark Sky, Zephyr Beverages and Sosland Sports, moves to Maine Apples, Chic Cosmetology and Tacotle, and ends with harder cases such as Orrington Office Supplies, Garthwaite Healthcare, Salty Sole, Mustard Clinic, Bubbly LLC, Kellogg Capital and Swagger Llamas.
Can I practice Kellogg casebook cases with an AI interviewer?
Yes. 13 of its cases run on Tough Tongue AI as voice interviews: the interviewer gives you the prompt, puts each exhibit on your screen when the case reaches it, waits while you do the math, pushes back on your recommendation, and grades you against the case's own answer key. For any other case in the book, the open-source case-interview-builder skill turns the casebook pages into an interviewer-led case with a hidden answer key, run from Claude, ChatGPT, Codex or Cursor.
Run a Kellogg 2024 case tonight
Start with DigiBooks, out loud and on the clock, and read where the points went.
Run DigiBooks