During its first week, Mary Trump's tell-all book about her uncle, Donald Trump, has sold over 1.3 million copies across all formats, the publisher, Simon & Schuster, said a statement.

"Too Much and Never Enough: How My Family Created the World's Most Dangerous Man" discusses the Trump family as a whole, with Mary Trump writing about how the president's childhood and parents led him to be the divisive leader he is today.

The book makes a number of shocking claims, including that Donald Trump cheated on his SAT by having someone else take the exam.

The book will be receiving a 17th printing because of high demand, bringing the total of hardcover copies to 1.35 million. The Los Angeles Times reported that the book set a first-day-sales record for Simon & Schuster.

This hardcover book has likely done better in hardcover sales than Donald Trump's most popular book "Trump: The Art of the Deal."

Trump has claimed that that book is "the best-selling business book of all time."

As of 2016, the book has sold 1.1 million copies since its release in 1987, CBS News reported, citing a source familiar with the book's sales.

Donald Trump's brother tried to ban the release of the book, arguing it was an "attempt to sensationalize and mischaracterize our family," a person familiar with the matter told The New York Times.

It's not uncommon for tell-all books about the Trump administration to have strong first-week sales.

"The Room Where It Happened" the memoir by former national-security adviser John Bolton sold 780,000 copies its first week in production.

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Mary Trump's book likely outsells 'Art of the Deal' in first week - Business Insider - Business Insider