While working on his dissertation in 1971, Lennon watched
Gore Vidal and Mailer's altercation on
The Dick Cavett Show. Lennon wrote a letter of support to Mailer who then invited Lennon to hear him speak. Afterward, they met at a bar and began their long friendship and collaboration. Mailer enjoyed the Irish "bravura" and sense of humor, so he took an immediate liking to Lennon. Lennon and his wife Donna and their sons became friendly with Mailer's family, including all nine children, and his sister Barbara Wasserman and her son Peter Alson, and enjoyed regular visits in the summers. Lennon became Mailer's literary executor in 1981 and proposed a collection of Mailer's essays and interviews which became the 1982 collection,
Pieces and Pontifications, which Lennon edited. Mailer would later add: "Sometimes I think Mike Lennon and I were as designed for each other as some species of American Yin and Yang, as hot dogs, perhaps, and mustard. His talents, his discipline, and his ambition form a complement to all the slacks, voids, and indolences of my nature." In 1988, Lennon edited
Conversations with Norman Mailer, a collection of 34 of his interviews and a key source for those writing about Mailer. By this time, Mailer had begun sharing drafts of his books with Lennon, who began assembling a collection of his books, his uncollected reviews, essays, poems and letters to the editor, and everything in print he could find about Mailer. At Lennon's suggestion, in 1994 the Mailer papers, previously housed in Manhattan, were moved to a large professional storage facility in Pennsylvania. This arrangement made it more convenient for Lennon and Mailer's current biographer and archivist
Robert F. Lucid to have access. Lennon and his wife began to re-organize the papers, sifting and sorting through 500 cubic feet of paper. This led to work on a comprehensive annotated listing of Mailer's writings, and those about him.
Norman Mailer: Works and Days, compiled by the Lennons, was published in 2000, with a preface from Mailer, and is the standard Mailer bibliography. Three years earlier, Lennon and Lucid assisted Mailer in putting together a mammoth collection of his writings,
The Time of Our Time. Mailer's archive found its permanent home at the
University of Texas'
Harry Ransom Center in 2005. Lennon helped broker this $2.5 million deal. In 2000, Lennon began the task of reading and selecting Mailer's letters. It took him almost three years to read all 45,000 letters (25 million words), and he remains the only person, save Mailer, who has read them all. Since Mailer was open and frank in his letters, Lennon explains to Sipiora, they became the most important sources for the biography. In 1997, the Lennons purchased a condo in
Provincetown a short walk from the Mailer house, and spent weekends and summers there. The Lennons often played
Texas Hold'em with Mailer, enjoying the play, friendly banter, and Jameson's. In Mailer's later years, the Lennon's would become honorary members of the Mailer family. In 2003, a volume of Mailer's insights on writing,
The Spooky Art, was published, edited by Lennon. It contains excerpts from previously published items by Mailer, excerpts from interviews Mailer had given, and fifty original pieces written for the book. When Lucid died unexpectedly in December 2006, Lennon, always Lucid's understudy, took over as authorized biographer—what he called "a comfortable job" after their 35-year acquaintance. A year later Mailer died. Lennon,
Lawrence Schiller and Mailer's widow,
Norris Church Mailer, produced the memorial to Mailer at Carnegie Hall in the spring of 2008. In 2008, Lennon signed a contract with Simon and Schuster for the biography. He also entered into an agreement with the Mailer Estate granting him full access to the Mailer letters and unpublished manuscripts. Lennon and his wife moved full-time to their condo in Provincetown where Mailer had begun writing his final novel,
The Castle in the Forest (2007), in fall of 2000. Lennon had kept extended notes on Mailer's table talk, and also interviewed him on many aspects of his public and private life. Lennon's unpublished "Mailer Log," his record of Mailer's last three years, runs to 150,000 words. The summer before Mailer died, he and Lennon completed work on a series of interviews on Mailer's theological ideas and theories. The ten long discussions were published as
On God: An Uncommon Conversation just days before Mailer died. Over the next four years Lennon interviewed 86 people, including his ex-wives, children, cousins, sister, nephew, and many close personal and literary friends, including
Don DeLillo,
Gay Talese,
Robert Silvers,
Barbara Probst Solomon,
David Ebershoff,
Ivan Fisher, Eileen Fredrikson, Lois Wilson, Carol Holmes,
Tina Brown, Harry Evans,
James Toback,
Nan Talese,
Dotson Rader,
Doris and
Dick Goodwin,
William Kennedy, Richard Stratton,
Mickey Knox, and Lawrence Schiller, Mailer's most important collaborator. Schiller gave Lennon access to all of his interviews with Lawrence Grobel which became important for understanding the Schiller-Mailer relationship. Schiller also enlisted Lennon to edit four new editions of Mailer books, including
The Fight,
Marilyn, and
Of a Fire on the Moon for
Taschen books. The Lennons made several month-long visits to the Mailer archives in Texas, in 2008 and 2009, and in the fall of 2009, he began writing, breaking his daily routine only to conduct interviews. At the end of October 2012, after six years of writing and research, he submitted the biography to Simon and Schuster. In 2018, Lennon was criticized for asserting in an interview that Mailer "was never accused of hurting any women", before being reminded by the interviewer that
Mailer had stabbed his wife. ==Academic life==