Growing up with Spock as a father, Adam Nimoy discovered early, was not easy.

At 67, Nimoy’s new memoir, “The Most Human: Reconciling with My Father, Leonard Nimoy” (Chicago Review Press), examines the gulf between the public image of the “Star Trek” icon and the reality of a distant father.

Also stressed is the importance of the 12-step program that helped father and son reconcile, heal and bond. Nimoy makes an appearance June 30 at Boston’s West End Museum, the neighborhood in which his father grew up.

“This is really the story of the journey of my father and myself, where I started to come around and reconcile with my dad. That’s the focus,” he said in a phone interview from his LA home.

Leonard Nimoy, he readily conceded, “was a difficult man to communicate with and on a personal level, it was hard to connect with him. We didn’t have many things in common — until I started watching him on TV.

“He was a man of few words, much like his father. He could be very introspective, distant and cool. There was a discomfort with him, where I just didn’t feel connected with him.”

His mother compensated. “My sister and I were very fortunate that our mother was very affectionate, loving and supportive. We really felt loved and taken care of by her. Also, her parents had moved to Los Angeles from Cordova, Alaska, and they were also very demonstrative, very affectionate people. So we had good modeling on that front.”

His book notes how father and son both ventured down parallel paths with marriages leading to divorce, battling addiction and finding recovery.

“That worked out well. We had a very great relationship the last years of his life. We had similar experiences: My dad and mom were married for 32 years and that marriage ended. Not long thereafter, my dad went into recovery.

“My marriage ended after 18 years, and immediately I went into 12-step recovery.

“My dad was the alcoholic in the family, something that he had admitted to on many occasions. I was mostly a pothead; I smoked pot pretty much every day for 30 years.

“I never considered myself an alcoholic. But I identify as one because I go to AA meetings because it’s 12-step recovery. It’s all the same. Alcohol was not what we call our drug of choice. It was just marijuana.

“But the recovery work is all the same. We abstain from everything, and we practice the same principles of working the program.

“With my dad, we finally figured out how to reconcile with one another and become very close.”

Adam Nimoy will be in conversation about “The Most Human: Reconciling with My Father, Leonard Nimoy” at 4 p.m. Sunday at the West End Museum, 150 Stanford St., Suite 7, Boston.  Tickets are $10. Trident Booksellers will be present with copies of the book.

Director Adam Nimoy attends the 2016 “Star Trek: Mission New York” at Javits Center in New York City. (Photo by Roy Rochlin/Getty Images)