Retired Supreme Court Justice Anthony M. Kennedy has a two-volume memoir coming out this fall, tracking his life from growing up in California to his 30 years on the court, when he cast key votes on landmark cases ranging from abortion to gay marriage to campaign finance.

Simon & Schuster announced Tuesday that Kennedy’s “Life and Law: The Early Years” and “Life and Law: The Court Years” will be published Oct. 1, as a boxed set and in individual editions, each around 320 pages. Kennedy was widely regarded as a moderate conservative who wrote the majority opinion on such closely divided cases as Obergefell v. Hodges, which found a constitutional right to same-sex marriage, and Citizens United v. Federal Election Commission, which allowed corporations and other outside entities to spend unlimited money on election campaigns.

“In ‘Life and Law,’ he explains the why’s and how’s of judging,” Simon & Schuster’s announcement reads in part.

“The second volume is filled with moving portraits of Justices O’Connor, Rehnquist, Scalia and Ginsburg that go along with the account of how Kennedy decided his views in the landmark cases. But it is the first volume about his youth in Sacramento and his decade as a practicing lawyer that explains the judicial giant. Readers will see the child who turns into the man, who shaped America as much as any Washington figure in the 21st century.”

Kennedy, 87, noted in the preface to the first volume that his memoirs proved more expansive than originally planned.

“It was my intent (my right hand is raised to swear it so) to recount my earlier years in a summary way. But something happened on the way to the pencil,” he wrote. “More and more of my recollections turned to how our society and its mindset changed in fascinating ways from the ’40s and ’50s to the ’60s and then again in the ’70s. This seemed relevant to the dynamics that influenced me and our larger society.”

“As each day passes, we should strive to learn more about who we are and whom we should strive to become,” he added. “Writing a memoir is a formal way to do this.”

Kennedy was an associate justice from 1988-2018 and his arrival and departure proved equally newsworthy.

He was appointed to the court by President Ronald Reagan, but only after the Senate had voted down Reagan’s first choice, Robert Bork, and after the second choice, Douglas Ginsburg, withdrew amid reports he had smoked marijuana. When Kennedy announced in 2018 that he was stepping down, President Donald Trump nominated a former Kennedy law clerk, Brett Kavanaugh, who was narrowly approved by the Senate after contentious confirmation hearings that included allegations Kavanaugh had assaulted a high school acquaintance, Christine Blasey Ford.

Kennedy’s book will arrive soon after Justice Ketanji Brown Jackson’s memoir “Lovely One,” which comes out Sept. 3.