Pascal asked in the comments to a previous post about the book about how I was going about writing the book and how the publication process works. It's a good question, and something I meant to cover here anyway, so now seems like a good time. I'll start from the beginning with a brief summary of how I got started with this writing thing. I started off by writing a number of articles for IBM DeveloperWorks. DeveloperWorks are actually really good to work with, all I did to start writing from them was fill in the proposal web form within a couple of hours we'd sorted out what was happening, and off we went. The ImageMagick articles I wrote turned out to be quite popular with the ImageMagick people. I suspect that's why the editor for Apress, a lovely guy named Matt contacted me. He pitched the book to me, and I was originally hesitant. He spent a fair bit of time (a month?) discussing the project with me, and I ended up deciding that because it's fairly closely aligned with the imaging work I'm doing for my PhD, I ended up saying yes. Along the way I wrote a…