While the focus of the book is on Nimoy's Star Trek career, he also takes time to explore his other works, including directing and theatre acting. Throughout the book, Nimoy frequently has conversations with his other half, as he explores the choices and decisions he has made throughout his life, and how those choices have been affected by a certain calm logical voice in the back of his mind. Spock himself, in the form of a letter the Vulcan writes to Leonard Nimoy, to express confusion over the highly illogical title. Indeed, the book's foreword is written by Mr. This duality is explored and taken to extremes throughout the book. On the contrary, Nimoy explains in this book that Spock has always been a part of him. In reality, his feelings toward Spock had not changed at all in the intervening years. He had not anticipated the problem of people reading the title without reading the book. In his second autobiography, Nimoy explains that the title of the first book had been his idea, over the objections of his publishers.

Negative fan reaction to the title gave Nimoy the idea for the title of the second volume. At that time, Nimoy had sought to distance his own personality from that of the character of Spock, although he nonetheless remained proud of his time on the show. The book's title was a reference to the first volume of his autobiography, I Am Not Spock, which had been published in 1975. The book was published in 1995, four years after the release of the last Star Trek motion picture starring the entire original cast, and covers the majority of Nimoy's time with Star Trek in general and Mr. I Am Spock is the second volume of actor and director Leonard Nimoy's autobiography.

Book i am not spock