// Book comparison
The Big Short vs The Mom Test
Which should you read? A side-by-side comparison of The Big Short by Michael Lewis and The Mom Test by Rob Fitzpatrick.
The Big Short
by Michael Lewis
★ 4.9/5
The Mom Test
by Rob Fitzpatrick
★ 4.9/5
At a glance
| The Big Short | The Mom Test | |
|---|---|---|
| Rating | ★ 4.9/5 | ★ 4.9/5 |
| Pages | 288 | 132 |
| Reading time | ~7.2 h | ~3.3 h |
| Published | 2010 | 2013 |
| Author | Michael Lewis | Rob Fitzpatrick |
| Category | Finance & Investment | Startups & Entrepreneurship |
| Publisher | W. W. Norton & Company | CreateSpace |
Choose The Big Short if…
- → You're interested in finance & investment.
- → You want the higher-rated book (4.9/5).
Choose The Mom Test if…
- → You're interested in startups & entrepreneurship.
- → You prefer a shorter read (~3.3 hours).
- → You want the more recent perspective (2013).
Key takeaways — The Big Short
- ✓ Prioritize First-Hand Data Investigation, ensuring your organization’s biggest strategic bets are based on the reality of the 'Underlying Assets' rather than on the opinions of rating agencies or experts.
- ✓ Cultivate Contrarian Bravery, recognizing that the most significant strategic opportunities often require you to stand alone and bet against the 'Collective Blindness' of the market.
- ✓ Understand The Danger of Complexity as Obfuscation, recognizing that when a financial product or business model is too complex to be easily explained, it often hides systemic fragility and loss.
Key takeaways — The Mom Test
- ✓ Avoid Idea-First Questioning by focusing your customer interviews entirely on the prospect's current life and past behaviors, which are the only reliable predictors of future purchases.
- ✓ Identify and ignore Compliments and Generic Feedback, recognizing that polite encouragement is a 'false signal' that often leads to the development of unnecessary features.
- ✓ Secure Customer Commitment—such as a follow-up meeting or a pre-order—as the only valid proof that your strategic solution addresses a real and urgent organizational need.
The verdict
If you want the higher-rated, more acclaimed read, start with The Big Short. If you specifically need startups & entrepreneurship, The Mom Test is the better fit. Both summaries are free — no signup required.
❓ FAQ
Is The Big Short or The Mom Test better? +
The Big Short has the higher reader rating (4.9/5 vs 4.9/5), but "better" depends on your goal. The Big Short focuses on finance & investment, while The Mom Test focuses on startups & entrepreneurship. See the verdict below.
Which is shorter, The Big Short or The Mom Test? +
The Mom Test is shorter (132 pages, ~3.3 hours) compared to The Big Short (288 pages, ~7.2 hours).
Should I read The Big Short or The Mom Test first? +
If you want the quicker, higher-rated read, start with The Big Short. Otherwise read whichever matches your current goal — both summaries are free on BookHubs.