I have been working in the computer industry for 24 years and have been writing for about 12 of those years - mostly books about computers and technology. I've written or co-written around 30 books. All of them were fun to work on; a few have even won awards.
My work focuses mostly on things Microsoft, including operating systems, applications, networking, and general technology. In addition to books, I also write articles, white papers, marketing collateral, online technical resources, presentations, and things like that. For some of that work, I also do document design and layout.