David Emery Online

One of the biggest challenges of technical publishing is that sinking feeling you get a few moments, days, weeks, or months after you first see a book in print: it's obsolete. No matter how much hard work you put into a book, you can only do so much future-proofing. Sometimes obsolescence comes slowly, but often, especially for popular topics, books have a depressingly short shelf life. Readers want to be able to use the latest and greatest, and blame books quickly when something no longer works.

What if there was some way, maybe via a computer for example, to publish something digitally and then keep updating and editing it afterwards?

Would be pretty clever, that.