I have no objection to well-written romance, but I'd read enough of it to know that that's not what I had written. I also knew that if it was sold as romance I'd never be reviewed by the 'New York Times' or any other literarily respectable newspaper - which is basically true, although the 'Washington Post' did get round to me eventually.
All of my books have an internal geometric shape, and once I've seen the shape, then the writing gets much faster and easier because I now do know where we're going, and I know what's motivating these people, why they were here, and therefore, I have some good idea how they got there, and so I can fill in the missing chunks somewhat more easily.
There are lines of geomagnetic force running through the Earth's crust, and most of the time, these run in opposing directions - forward and backward. In some places, they deviate and will cross each other, and when that happens, you kind of get a geomagnetic mess going in all different directions. I call these vertices.
My parents were both born in 1930. They grew up during the Depression. They wanted their children to have secure lives, to have a good salary and a pension plan. If I could've guaranteed that I'd be a best-selling writer, that would've been one thing, but nobody could say that. So I knew better than to say that was ambition.
From the late '70s to the early '90s, I wrote anything anybody would pay me for. This ranged from articles on how to clean a longhorn cow's skull for living-room decoration to manuals on elementary math instruction on the Apple II... to a slew of software reviews and application articles done for the computer press.