Good, but very basic and slightly outdated.
Spans through a variety of topics, from how to start, to how to actually write, to publishing and how to make money off your writing.
It had some interesting points of reference (like the section on terminology, or #44 and #82), but still brought nothing new to the table. Recommended for someone just getting into writing and who doesn't know much about the subject at all, but if you are already pretty familiar with writing, I'd give it a pass.