You can write memoir for any reason, and at any time. Getting a major house to publish it is, however, a more involved proposition.
Small presses may well be happy if your book sells a few thousand copies in trade paperback. There are many people with local or regional reputations who can write a memoir and bring home those numbers, if they have an interesting story to tell.
For example, the head of a college drama department might write, "My Life in the Theatre," and get it published by the college press, and it might sell steadily to the 5% of the thousands of alums and their friends and family. Not huge numbers but steady.
A memoir published by an imprint of Random House, Penguin, Harper Collins, Hyperion . . one of the big houses . . needs to have something more.
As a rule, the big publishers want books that speak to a nationwide or even worldwide audience. Regional audiences are not enough. And the story has to be new, and fresh, and compelling. And it has to be good, because every writer in the world (so it seems) has his/her sights set on the same publishers and there are of course only so many slots to go around. So anyone aspiring to do that faces stiff competition. And those editors have the luxury of picking the best from the pool.
As a logical and practical guy, if I had read those odds before writing Look Me in the Eye, and my brother had not paved the way with his books, I would not even have considered trying to publish a book.
So what's new in terms of story line? . . . here are some examples . . . How bout Pattie Boyd's book - married to Eric Clapton and George Harrison, and the ultimate music business insider. Barack Obama's story . . . a presidential candidate, and everyone wants to know him. And me . . an Aspergian . . and it seems Asperger's in everywhere in the news today.
What does including myself in that short list show? It shows that celebrity can give you a platform, but so can an issue. My issue is Asperger's. What if I'd won a major bike race? What if I ran a prestigous private school, and many of my graduates went on to fame and fortune? There are many things one can do that would provide a platform for a memoir. Did you do any of those things? Do you have one of those conditions? Are you one of those people? I don't know.
Can you make yourself such a person? Certainly. But it takes time.
I set out to design special effects for the biggest bands in the world. And I did it. I set out to get a design engineer job with the leading maker of electronic games, and I did that too, and I worked on the first talking game, and the first console game (the forerunner of Nintendo.) And then I started a car business and again I dealt with the very top of the market - Rolls Royce, Bentley, Land Rover.
All those life situations gave me material for my stories. But it was my drive to take each of those careers to the top that gave me the platform for my book. The bands I worked for, the games I worked on, the cars I trade . . . they are known all over the country. If I had done those same things, but at a lower level, I would not have a platform.
An important point: The things I did are known. I personally am unknown. What you do can speak for you in terms of platform, if what you do finds wide recognition.
Now, during my time in those work areas, I had no idea of platform, and I never gave a single thought to writing a book. But my drive to be the best, and to reach the pinnacle, is what made book publishing possible for me today.
And there's another way to do it . . . shock value combined with writing talent. Running With Scissors is just such an outrageous, disturbing story that the events themselves catapulted my brother into the limelight, after which he was assured of a market for his subsequent work. And the value of a shocking and well-written story cannot be underestimated, as the five million readers of Running With Scissors will attest. That book, by a "nobody," has outsold most rock star memoirs, many presidental memoirs, and most other works by big public figures.
And that last point, the example of my brother, should be the thing that keeps everyone writing.