After more than three decades hosting “Jeopardy!” — and being begged to pen a tell-all about his own life and what it’s like behind the scenes — the beloved emcee is releasing a book on July 21.

Trebek, who has been battling stage 4 pancreatic cancer since last year, is giving scores of fans what they want with “The Answer Is… : Reflections on My Life” ($25; Simon & Schuster).

“I want people to know a little more about the person they have been cheering on for the past year,” Trebek, who turns 80 on July 22, writes in the book, according to The Hollywood Reporter.

In the book, Canadian-born Trebek will cover topics including marriage (he and wife Jean live in Los Angeles), parenthood (he has two kids, Emily and Matthew), education, success, spirituality and philanthropy.

He will also answer frequently asked questions from fans, including why he shaved his mustache, what he thinks of champion players like Ken Jennings and James Holzhauer and what he makes of Will Ferrell’s impersonation on “Saturday Night Live.”

Expect dozens of never-before-seen photos of Trebek, who debuted as “Jeopardy!” host in 1984. The book is also structured like the game show; each chapter title is written in the form of a question.

Trebek announced his diagnosis in March of 2019. The outpouring of support over the last year, as he’s fought the disease and shared updates on his condition, helped convince Trebek to “share his story,” according to publisher Simon & Schuster.

One year after announcing his diagnosis, Trebek delivered an emotional speech about his treatment.

“There were moments of great pain,” Trebek said in a video posted on the “Jeopardy!” Twitter account. “Moments when certain bodily functions no longer functioned and some massive attacks of great depression that made me wonder if it was really worth fighting on. But I brushed that aside very quickly, because that would have been a massive betrayal.”

Trebek, who said he didn’t want to let down millions of fans or his wife Jean, vowed that he and his doctor believe he will live to give another update next year.

“Jeopardy!” suspended filming in front of a studio audience in March and have now stopped taping altogether due to the coronavirus. New episodes recorded before these precautions, including this week’s College Tournament, will continue to air.