Book Review: Bad Blood by John Carreyrou

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I have a specific reading weakness, and Bad Blood is its purest expression: I love getting inside a large institution and watching exactly how a scandal unfolds. Not the headline version — the mechanics. Who knew what, when the lies started compounding, which meeting was the point of no return. This book is that anatomy lesson, performed by the reporter who broke the story.

The spoiler-free setup (though history already spoiled it): Theranos, the blood-testing startup that reached a $9 billion valuation on technology that did not work, and Elizabeth Holmes, the founder who kept the story aloft. Carreyrou, the Wall Street Journal reporter who pulled the thread, reconstructs the whole arc — from dorm-room origin myth to the collapse his own reporting triggered.

What I Loved About Bad Blood by John Carreyrou

It’s really good at the thing I came for: the inside of the machine. The book’s power is cumulative — one plausible decision at a time, one intimidated employee at a time, until an entire institution is organized around protecting a fiction. As someone who loves good investigative journalism, I’d put this on the short shelf of books that show you how the sausage of a scandal actually gets made. And the last act, where Carreyrou himself enters the story he’s reporting, reads like a legal thriller.

What I Didn’t Love About Bad Blood

Time has settled this one at four stars for me rather than five: it’s excellent, once. It’s a story you consume rather than a book you return to — which is no crime, but my five-star shelf is for the books I keep re-opening.

Final Thoughts on Bad Blood by John Carreyrou

My final score: 4 out of 5 stars ⭐️⭐️⭐️⭐️

Do I recommend this book? 👍 Yes — the definitive scandal autopsy.

If institutional rot is your genre too, my review of Catch and Kill is the natural double feature. Full shelf at book reviews.

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