A proven guide for anyone who wants to solve market-sizing cases in a structured and confident manner.
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Already sold over 20 times!
A comprehensive guide designed to help candidates master the market sizing question.
This resource includes:
Written by a consultant who successfully passed 10 out of 10 interviews - 9 of which included a market sizing question.
- Theory: An in-depth breakdown of the 4 main Market Sizing Question types, with a step-by-step process to solve each.
- Practice: Solutions to 40 Market Sizing questions across 8 industries, to provide tailored practice.
- Math Chapter: A comprehensive math chapter that covers both the fundamentals and a wide range of advanced tricks.
- Fact Sheet: The fact sheet maintained and refined by the author during the preparation phase.
Complete Consulting Interview Preparation
Open, Analyze, and Close a Case like a Pro
Develop the Business Acumen of a Pro
Answer Fit Questions Like a Pro
About Joel
Reviews and Success Stories
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on Apr 28, 2025
Very informative and insightful! I've been searching for so long for a resource to help me with Market Sizing and this book was the answer to ALL my questions! extremely detailed, holistic, and practical! (Math chapter is also an amazing bonus)
on Apr 14, 2025
Amazing book! The book goes in great depth when it comes to the theory. Also, the 40 solved questions complemented the theory and helped me get interview-ready in no time! Highly recommended for serious candidates who want to sharpen their market-sizing and math skills!
on May 07, 2025
This book is by far the most helpful resource i've come across and I love the math section in particular.
The writer seems very knowledgeable as well. Highly recommend !