an open book
noun
: a person or thing that is easy to learn about and understand
My life is an open book. I have nothing to hide.
Examples of an open book in a Sentence
Recent Examples on the Web
Target Santa seen bench holding book The clip Target shared online ringing in the 2025 season shows a woman walk by the Santa impersonator – who is spotted holding an open book in an aisle.
—
Natalie Neysa Alund, USA Today, 27 Oct. 2025
The British Museum is an open book to the world.
—Samantha Conti, Footwear News, 17 Oct. 2025
Martin Scorsese has always been an open book, a storyteller who has offered his autobiography freely and an auteur whose deepest philosophical themes have been recurring and explored in bold type.
—Daniel Fienberg, HollywoodReporter, 4 Oct. 2025
Sage has been more of an open book with her fellow Uli tribemates by sharing both the emotional and physical challenges she's faced on the show.
—Caroline Blair, PEOPLE, 25 Sep. 2025
Without encryption, your internet traffic would be an open book for anyone to read, including bad actors.
—Anand Oswal, Forbes.com, 2 Sep. 2025
Ayeni earns it with his players by being an open book.
—Nick Kosmider, New York Times, 31 July 2025
One of the biggest challenges for young entrepreneurs is breaking out of the structured schooling mindset—and realizing that a startup is an open book.
—Preston Fore, Fortune, 10 July 2025
Selena Gomez has long been an open book about her struggles with mental and physical health.
—Gil Kaufman, Billboard, 3 Sep. 2019
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Natalie Neysa Alund, USA Today, 27 Oct. 2025
The British Museum is an open book to the world.
—Samantha Conti, Footwear News, 17 Oct. 2025
Martin Scorsese has always been an open book, a storyteller who has offered his autobiography freely and an auteur whose deepest philosophical themes have been recurring and explored in bold type.
—Daniel Fienberg, HollywoodReporter, 4 Oct. 2025
Sage has been more of an open book with her fellow Uli tribemates by sharing both the emotional and physical challenges she's faced on the show.
—Caroline Blair, PEOPLE, 25 Sep. 2025
Without encryption, your internet traffic would be an open book for anyone to read, including bad actors.
—Anand Oswal, Forbes.com, 2 Sep. 2025
Ayeni earns it with his players by being an open book.
—Nick Kosmider, New York Times, 31 July 2025
One of the biggest challenges for young entrepreneurs is breaking out of the structured schooling mindset—and realizing that a startup is an open book.
—Preston Fore, Fortune, 10 July 2025
Selena Gomez has long been an open book about her struggles with mental and physical health.
—Gil Kaufman, Billboard, 3 Sep. 2019
Cite this Entry
“An open book.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/an%20open%20book. Accessed 3 Nov. 2025.
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