The Case Room Insights

The case interview, from the other side of the table.

Practical lessons on case interview preparation, drawn from real candidate answers and nearly five years of interviewing at McKinsey.

Case interview practice

The Most Important Part of Case Interview Practice Happens After the Case

A practical process for reviewing every practice case, understanding your mistakes, and turning feedback into better performance in your next interview.

By Chang Liu10 minute read

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Question review

FasterFind the shortest sound route.

FullerComplete the reasoning.

CleanerMake the answer easy to follow.

Case interview math

The Five Parts of a Strong Case Interview Math Answer

Why getting the calculation right is only one part of the answer.

By Chang Liu7 minute read

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A complete math answer

1Define the question
2Set up the calculation
3Align on assumptions
4Execute and check
5Interpret the result