Author: Taylor Warfield, Former Bain Manager and interviewer

Last Updated: September 25, 2026

 

The Wharton casebook is a free practice case collection published each year by the Wharton Consulting Club, and the most recent edition packs 18 full cases plus structuring, math, and chart drills into 280 pages. This guide covers what sits in each section, which edition to use, how the cases hold up against real consulting interviews, and how to practice with them.

 

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Key Takeaways

 

The Wharton casebook is one of the strongest free case interview resources in circulation, but it only builds skill if you use a recent edition and run the cases out loud instead of reading them.

 

• The 2024-2025 edition runs 280 pages, with 200 of those pages devoted to 18 full practice cases

 

• Every case is tagged by format, type, difficulty, industry, and the specific skill it stretches

 

• The 2023-2024 edition credits Bain and EY-Parthenon with contributing former interview cases

 

• Profitability and revenue growth account for 8 of the 18 cases in the latest edition

 

• Wharton cases lean heavier on finance math than most casebooks, including valuation and payback work

 

• The casebook itself estimates that candidates spend up to 60 to 80 hours preparing

 

What Is the Wharton Casebook?

 

The Wharton casebook is a free case interview practice guide produced each year by the Wharton Consulting Club, the MBA student organization at the University of Pennsylvania's Wharton School. Each edition includes a recruiting overview, sample frameworks, behavioral interview tips, math and chart drills, and a set of full-length practice cases with prompts, exhibits, and sample answers.

 

The club is one of the largest professional clubs at Wharton, and its stated mission is to promote interest in consulting and support consulting career opportunities for members, according to Wharton's MBA program site. The casebook is assembled by the club's resource development team, drawing on cases that members encountered during the previous recruiting cycle.

 

Wharton has been publishing some version of this material for a long time. A printed Wharton MBA Case Interview Study Guide was distributed commercially as far back as 1997, and a revised interview study guide followed in 2003. The modern slide-based casebook took shape in the late 2000s and has been rebuilt roughly every year since.

 

One thing worth understanding: the casebook is not an official Wharton School publication and it is not sold. The 2024-2025 editors describe it as a supplement to work done by their own club and other schools, and they explicitly tell readers to use diverse resources. That is unusually honest for a prep document, and you should take the advice.

 

What Is Inside the Wharton Casebook?

 

The 2024-2025 Wharton casebook splits into ten sections across 280 pages. Roughly 70% of the page count is full practice cases, with the remaining pages covering recruiting logistics, frameworks, behavioral prep, and three separate drill sets.

 

Section	Pages	What it gives you
Consulting recruitment schedule	4	Month by month view of kickoff, briefings, networking, applications, and interviews
Case interview tips	5 to 11	Case definition, case types, industries, and a timed breakdown of the five case components
Sample case frameworks	12 to 16	Four worked framework templates covering the most common case types
Behavioral interview tips	17 to 22	Story structures plus 30 sample questions across six competency areas
Math analysis and drills	23 to 33	Seven math habits and 27 formulas covering profit, investment, operations, and finance
Structuring drills	34 to 59	Eight short prompts with model clarifying questions and sample structures
Case log template	60 to 61	A tracking sheet for feedback and technical pointers, pre-filled with two examples
Chart drills	62 to 78	A running exhibit case plus a gallery of chart styles you should recognize on sight
Full practice cases	79 to 278	18 complete cases with prompts, exhibits, math, brainstorms, and recommendations
Other recommended cases	279 to 280	A short pointer list to classic cases from other school casebooks

 

The frameworks section is deliberately narrow. It covers only profitability, revenue growth, market entry, and merger and acquisition cases, each laid out as a four-bucket structure with sub-branches. Four templates will not cover the range of prompts you will actually face, which is why the case interview frameworks you build yourself matter far more than any template you copy.

 

The math section is the most immediately useful part of the book for most candidates. It lists 27 formulas grouped into profit, investment, operations, market share, and finance categories, each with a worked shirt-company example. If your case interview math is shaky, this section alone justifies the download.

 

The structuring drills are underrated. Eight prompts, each with a set of model clarifying questions and a sample structure, let you rehearse the first four minutes of a case over and over without needing a partner. The prompts range from a perfume brand losing profit to a government designing an education policy, so you are forced out of the usual corporate patterns.

 

The chart drills follow a single fictional social platform through gender splits, age mixes, and scatterplots, then close with a gallery of formats including bubble charts, Harvey balls, waterfall charts, and Marimekko charts. The three-step method the book teaches is orient yourself, identify trends, then answer the "so what" for the client.

 

What Cases Are in the Wharton Casebook?

 

The 2024-2025 edition contains 18 full cases, and each one is tagged with its format, case type, difficulty, industry, and a "stretch area" naming the specific skill it is built to test. That tagging is the single most useful design choice in the book, because it lets you pick your next case by weakness instead of by whatever comes next in the file.

 

Case	Format	Type	Difficulty	Stretch area
Electro Chargers	Interviewee-led	Market entry	Medium	Structuring
Happy Bellies	Interviewer-led	Revenue growth	Hard	Structuring
Smart Radiators	Interviewee-led	Acquisition	Medium	Exhibit analysis
Compress and Expand	Interviewee-led	Revenue growth	Medium	Exhibit analysis
PSU Bank Co.	Interviewer-led	Revenue growth	Hard	Brainstorming
Fruit Drink Co.	Interviewee-led	Profitability	Easy	Brainstorming
Race to the Bottom	Interviewee-led	Profitability	Medium	Case math
Coolant Co.	Interviewer-led	Market entry	Medium	Case math
Lux Rides	Interviewee-led	Unconventional	Hard	Brainstorming
Slippery Soap	Interviewee-led	Profitability	Easy	Case math
Thomas the Tank	Interviewer-led	Profitability	Medium	Brainstorming
Jurassic Vale	Interviewee-led	Unconventional	Medium	Market sizing
Timeless Comfort	Interviewer-led	Profitability	Medium	Case math
Packaging Co	Interviewee-led	Unconventional	Medium	Case math
Rubber Plant	Interviewee-led	Investment decision	Hard	Case math
University Program	Interviewer-led	Unconventional	Medium	Brainstorming
Biopharma	Interviewee-led	Unconventional	Medium	Case math
Voter Turnout	Interviewee-led	Unconventional	Hard	Exhibit analysis

 

The type mix tells you what the Wharton club thought mattered most. Five of the 18 cases are profitability cases, three are revenue growth, two are market entry, one is an acquisition, one is an investment decision, and six are labeled unconventional. That last bucket is larger than in most casebooks and covers public sector, education, pharmaceuticals, and entertainment prompts.

 

Difficulty skews toward the middle, with 2 easy cases, 11 medium, and 5 hard. Case math is the most common stretch area at seven cases, followed by brainstorming at five, exhibit analysis at three, structuring at two, and market sizing at one.

 

Twelve of the 18 cases are interviewee-led and six are interviewer-led. The book maps those formats to firms directly, listing McKinsey, Accenture, Oliver Wyman, and Strategy& on the interviewer-led side and Bain, BCG, Deloitte, LEK, and PwC on the interviewee-led side. Industries covered run from automotive and consumer packaged goods to airlines, financial services, pharmaceuticals, and public sector work.

 

Which Wharton Casebook Edition Should You Use?

 

Use the 2024-2025 edition as your primary Wharton casebook, because it is the longest, has the most cases, and is the only edition with dedicated structuring drills, chart drills, and a case log. Pull the 2023-2024 and 2022-2023 editions in later for extra volume once the newest cases start feeling familiar.

 

Edition	Length	Full cases	Best use
2024-2025	280 pages	18	Your default. Only edition with structuring drills, chart drills, and a case log
2023-2024	235 pages	Multiple	Second pass for volume. Credits Bain and EY-Parthenon with former interview cases
2022-2023	Over 100 pages	9	Best for finance-heavy math and private equity style due diligence prompts
2017 and older	Varies	Varies	Skip unless you have exhausted newer material. Formats and firm lists are stale

 

The 2022-2023 edition deserves a specific callout. Its nine cases include a wine producer, a facial tissue manufacturer, a school bus maker, a Las Vegas entertainment contract, a gym franchisor, an auto parts shop, an ophthalmology practice, a French clothing retailer, and a New Jersey hospital. Three of those are private equity or acquisition prompts, which makes that edition the best Wharton material for anyone targeting firms with heavy deal work.

 

Older editions still have value as reading material, and the 2017 edition even tagged its cases with the firms and rounds they resembled. The problem is that the firm lists, recruiting timelines, and case conventions have moved on. If you are choosing between a 2010 Wharton case and a recent case from another school, take the recent one.

 

How Do Wharton Cases Compare to Real Consulting Interviews?

 

Wharton cases are realistic in structure and pacing but heavier on finance than a typical first-round consulting interview. The book budgets 20 to 25 minutes per case and splits it into five components, which matches how a real case actually flows. Where it drifts is the math.

 

Here is what the Wharton casebook does better than most free material.

 

• Skill tagging: every case names the exact competency it stretches, so you can target weaknesses instead of grinding cases at random

 

• Interviewer coaching: each case tells the person giving it how to redirect a lost candidate and when to prompt for a recommendation

 

• Firm-sourced cases: the 2023-2024 edition thanks Bain and EY-Parthenon for contributing former interview cases

 

• Explicit benchmarks: the brainstorming guidance says firms report candidates offering only three ideas, and that the top 5% of candidates give seven or eight

 

That last benchmark is the most actionable line in the entire book, and almost nobody acts on it. Having coached hundreds of candidates one on one, the single fastest score improvement I see in brainstorming comes from pushing past the reflexive three ideas to five or six with a stated structure. The casebook tells you the bar out loud and most readers skim past it.

 

Now the weaknesses, because they matter just as much.

 

• Template-heavy frameworks: four pre-built structures invite memorization, which is exactly the habit that gets candidates dinged

 

• Finance math overweight: discounted cash flow valuation, EV to EBITDA multiples, net present value, and return on invested capital all appear across editions

 

• Static exhibits: slides cannot replicate an interviewer withholding data until you ask the right question

 

• Modest volume: 18 cases in the newest edition is fine but not deep enough to be your only source

 

The finance weighting is the one I would flag hardest. In my years interviewing candidates at Bain, I never once asked someone to run a discounted cash flow with a weighted average cost of capital and a terminal growth rate, yet a Wharton case does exactly that.

 

Practicing that math will not hurt you, but do not read it as a signal that consulting interviews test corporate finance. Bain's own case interview page emphasizes structure, communication, and working through the problem with the interviewer, not valuation mechanics.

 

The other thing to keep in perspective: casebook cases are written by students, not by firms. They are excellent for building reps, and they are the best free volume available. For the exact format a specific firm uses, go to the source, since McKinsey publishes its own sample cases with the logic and thought processes behind the answers.

 

How Should You Use the Wharton Casebook?

 

Work the casebook in the order its sections were designed to build on each other: drills first, then full cases, then a second source. Most candidates open straight to page 79 and start reading cases, which is the least efficient possible use of 280 pages. Here is the sequence I would run.

 

1. Read the frameworks section once, then close it: understand the logic behind each bucket, then never look at the templates again
   
   
2. Run all eight structuring drills: give yourself 90 seconds per structure, say it out loud, then compare against the sample
   
   
3. Work the 27 formulas until they are automatic: cover the worked example, solve it yourself, and check
   
   
4. Do the chart drills before any full case: orient, identify the trend, then state the implication for the client every single time
   
   
5. Solve three to five full cases alone, out loud: use the stretch area tag to pick ones that hit your weakest skill
   
   
6. Move to partner practice for the next five to ten: spend 15 to 20 minutes on feedback after each one
   
   
7. Fill in the case log after every case: log the feedback and the technical pointers, then review the log weekly
   
   
8. Rotate in a second casebook: once Wharton prompts start feeling predictable, switch sources rather than repeating cases

 

Two or three casebooks worked properly beat ten skimmed. The candidates I have coached to offers at McKinsey, BCG, and Bain rarely did more than 25 to 30 full cases in total, and the ones who did 60 usually did them badly. Depth of reflection is what separates a strong candidate from a busy one.

 

If you want a faster path than assembling your own curriculum from free PDFs, my case interview course walks you through proven strategies in as little as 7 days. It covers the structuring, math, and synthesis skills the drills are trying to build, in the order that actually works.

 

Tips for Getting the Most Out of the Wharton Casebook

 

Tip #1: Never read a case silently

 

Reading a case teaches you the answer. Saying it out loud teaches you the skill. Prop your phone up and record yourself if you have no partner, because hearing your own rambling framework is the fastest feedback loop available for free.

 

Tip #2: Cover the sample structure before you build your own

 

The sample framework sits two slides after the prompt in most Wharton cases, which makes it very easy to peek. Scroll past it, build your own structure in under 90 seconds, then compare. The gap between your structure and theirs is your actual study material.

 

Tip #3: Pick your next case by stretch area, not by page order

 

If your last three cases fell apart during exhibit interpretation, go straight to Smart Radiators, Compress and Expand, or Voter Turnout. Working through cases in order is how you end up doing seven case math cases and never fixing your case interview structure.

 

Tip #4: Force yourself to five ideas in every brainstorm

 

The casebook is explicit that three ideas reads as thin to firms. Before you start listing, take 30 seconds, write down buckets, then present them top down with the categories named first. That structure is what makes six ideas sound organized rather than scattered.

 

Tip #5: Take the interviewer seat as often as the candidate seat

 

Giving a case teaches you what a weak answer sounds like from the other side of the table, and the Wharton cases include interviewer guidance that makes this easy. You will spot vague structures, buried recommendations, and unsupported math far faster in someone else than in yourself.

 

Tip #6: Get one round of expert feedback before your first real interview

 

Peer partners catch obvious mistakes but rarely catch the subtle ones that decide close calls, such as a framework that is technically MECE but commercially useless. One session with someone who has actually scored candidates is worth ten peer cases. My interview coaching gives you that feedback from a former Bain interviewer.

 

The Wharton casebook is free, current, well-organized, and generous with the kind of diagnostic detail most prep material hides, which makes it one of the first resources I point candidates toward. Download the newest edition, run the eight structuring drills before you touch a single full case, and log every case you do. Do that and the book will build real skill instead of just filling your evenings.

 

Frequently Asked Questions

 

Is the Wharton casebook free?

 

Yes. The Wharton casebook is produced by the Wharton Consulting Club for its members and is not sold, and copies circulate widely online as free PDFs. No edition of the casebook requires payment, and the same is true of nearly every MBA consulting casebook published by a student club.

 

How many cases are in the Wharton casebook?

 

The 2024-2025 edition has 18 full practice cases, plus 8 structuring drills and a multi-part chart drill sequence. The 2022-2023 edition has 9 full cases along with separate math and brainstorming drill sets. Case counts vary by year because each edition is rebuilt by a new club team.

 

Is the Wharton casebook useful if you are not an MBA student?

 

Yes. Firms test the same core skills across undergraduates, MBAs, experienced hires, and career changers, so a Wharton case builds your structuring and math exactly the same way regardless of your background. The only MBA-specific content is the recruiting schedule and club event guidance at the front of the book, which you can skip.

 

Which is better, the Wharton casebook or another school's casebook?

 

Wharton is a strong pick for exhibit and math practice because of its dedicated drill sections and skill tagging. Other school casebooks are stronger in other dimensions, and the Kellogg casebook in particular is known for how deliberately it sequences cases. Use two or three casebooks rather than trying to pick one winner.

 

How many Wharton cases should you do before an interview?

 

Work through 8 to 15 full cases from your two or three chosen casebooks rather than trying to finish every case in one book. Do three to five alone first to get comfortable with structuring and math, then move to live partner practice for the rest. Reflection after each case matters more than raw case count.

 

Does the Wharton casebook cover McKinsey style cases?

 

Partly. Six of the 18 cases in the 2024-2025 edition are interviewer-led, which is the format McKinsey uses, and the book identifies which firms use which format. For McKinsey specifically, supplement the casebook with the official practice cases the firm publishes on its careers site.

 

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