One Insane Idea by Apoorv Singhal

Book Title: One Insane Idea
Author: Apoorv Singhal
Publisher: Penguin Business
Number of Pages: 300
ISBN: 0143478613
Date Published: May 25, 2026

Book Review

“One Insane Idea” looks at a question that many aspiring entrepreneurs have probably asked themselves: where does a good business idea actually come from? Rather than presenting ideas as sudden moments of brilliance, Apoorv Singhal explains how curiosity, observation, questioning, and practice can help people come up with better ideas. The 15 ideation techniques shared in the book are meant to help readers look at everyday problems differently and think about whether an idea can actually work in the real world. This makes it especially useful for people who have plenty of ideas but are unsure which ones deserve to be taken forward.

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The book is easy to follow and, importantly, does not get buried in complicated business language. The concepts are explained with simple illustrations and examples from situations that feel familiar, such as using cab apps, mobile recharge coupons, or dealing with the stress of making travel bookings. These examples make the ideas easier to understand and remember. Practical exercises are also included, allowing readers to work through their own thoughts instead of just reading about different techniques. The illustrations, in particular, add to the reading experience and make some of the concepts quicker to grasp.

In the end, “One Insane Idea” is a useful read for anyone interested in starting a business or simply becoming better at generating and evaluating ideas. It does not suggest that every unusual idea will turn into a successful business. Instead, it offers a way to question, test, and improve an idea before taking it further. The straightforward writing and practical examples keep the book engaging without making it feel like a typical business textbook. For students, entrepreneurs, and professionals with a curious mind, it can provide some useful ways to look at problems and think about possibilities that might otherwise be missed.

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