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by the book

idiom

: by following the official rules very strictly
My boss insists on doing everything by the book.

Examples of by the book in a Sentence

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Michael Burry, the hedge fund manager made famous by the book The Big Short, suggested that such equipment should be written down on a faster schedule, which would seriously dent the companies’ profit growth. Bloomberg, Mercury News, 2 Dec. 2025 Now, 25 years after its publication, a new edition of Reflections in Black is out, with 130 new images and an accompanying gallery show inspired by the book. Brittney Melton, NPR, 25 Nov. 2025 Bondi, though, insists everything will be done by the book. Milena Malaver, Miami Herald, 22 Nov. 2025 Like Nina at the prison, Evelyn would rather do things by the book: cleaning up Kingstown by putting criminals and dirty cops behind bars, rather than letting Mike decide who’s allowed to break the law. Noel Murray, Vulture, 9 Nov. 2025 See All Example Sentences for by the book

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“By the book.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%20the%20book. Accessed 10 Dec. 2025.

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