Explore everything

The basics

• Foundation

  Start here. The core skills every case needs, in order.

  19 modules · 43 lessons

• Case types

  One module for each type of case, each with worked examples.

  26 case types · 11 regional case sets

After the basics

• Expert trackNew

  For after the basics: final rounds, curveballs, speed, and stretch cases.

  6 modules · 10 lessons

• Firms and regions

  How each firm and each region recruits, and what they test.

  15 firms · 11 region guides

• Online tests and other formats

  Games, chatbot cases, aptitude tests, video, written and group cases.

  7 formats

• IndustriesNew

  Every industry brief, grouped by sector, with a one-minute summary and a start-here path.

  36 industry briefs · 114 lessons

• Industry atlas

  Every industry side by side: margin, capital, the unit and the key measure.

• Business model patterns

  The patterns that repeat across industries, and the questions each one raises.

• Industry lessons

  The full Industries library: three lessons for each industry.

• Industry GymNew

  Short rounds that train industry sense: costs, key measures, value chains and patterns.

  36 industries

Do a case

• Case simulatorNew

  Free typed case practice: a timed online-style case or a step-by-step interviewer case.

• Case library

  Worked cases to study, or run out loud with a friend in Partner mode.

  204 worked cases

  • Example interviewsStrong and weak runs of the same case, written out with notes on each answer.

• Practice ExchangeNew

  Live case practice with other candidates, opening soon. Partner mode works today.

  • How the Exchange will workThe rules, levels, and how a session will run once it opens.

Drills

• Mental Math Gym

  Timed case arithmetic, with the method shown for every miss.

  Endless, gets harder as you go

• Market Sizing Gym

  Estimate real quantities step by step and compare with a model answer.

  22 prompts

• Exhibit Gym

  Read a chart in 60 seconds, pull the right number, say the so-what.

  13 charts

• Structure Builder

  Build the top of an issue tree and get scored on coverage and overlap.

  10 prompts

• Online test practiceNew

  Practice in formats like the screening tests firms use: data study, puzzle, numbers, chatbot case.

Fit and feedback

• Story workshop

  Build your fit interview stories with instant feedback.

• Skills check

  A short test that shows your strongest and weakest skills.

  24 questions

• Daily review

  Five minutes a day on the questions you missed before.

• Glossary

  Plain-English meanings of the business and case terms you will meet.

  311 terms

• Frameworks

  The classic frameworks, when each one helps, and how to tailor it.

  22 frameworks

• Guides

  Short free guides to every case type, firm, region, and online test.

  76 guides

• Recruiting calendarNew

  When firms open applications, test, interview, and make offers for 2026-27, by region.

• Dashboard

  Your next step, readiness, streak, and daily review.

• Plan

  A day-by-day plan up to your interview date.

• Progress

  Your mastery by skill and everything you have finished.

• Applications and CVNew

  Track each application and its next date, and check your CV. Kept on this device.

  • CV and cover letter checkerRule-based checks on your pasted text. Nothing is uploaded.

• SavedNew

  Lessons and cases you bookmarked, and your notes.

• Your profile

  Your profile, syncing across devices, and your data.

About

• How it works

  How the lessons, practice, and your plan fit together.

  • Everything on the site, countedEach feature with a figure counted from the site, and a button to try it.

• Our honest promise

  What this site can and cannot do for you, stated plainly.

  • How we gradeEvery rule behind every score, and what the rules cannot judge.

• Project FellowsNew

  Paid project work with real companies, for our strongest members.

• For companies

  Bring a project to our members, or hire from the people who practice here.

Legal and help

• Privacy Policy

  What we store, where, and how to delete it.

• Terms of Service

  The rules for using the site.

• Report a problem

  Report a content error, a safety issue, a copyright concern, or a data request.

• Accessibility

  How we make the site usable for everyone, and how to tell us when it is not.