Review:
Of the four needle felting books I now own, this is the one I'd most recommend to beginners. It has an excellent variety of projects and actually talks about things like "how do I know when I'm done poking the wool?" and why it's best to make the parts smaller at first and then build them up gradually. It sticks to the absolute basics of needle felting and, as far as I can tell, doesn't even mention wire armatures or flocking, and none of the designs require either of these things.
Like every other one of these books I've seen, it starts with a section on tools and materials. Finger guards are listed as being optional, and lol no they are not, unless you're extremely careful. This section includes a nice "grams to ounces" chart that's helpful if you're in the US and your scale for wool measuring (which isn't strictly necessary, but is helpful for at least determining if you have enough wool for the project) doesn't have a setting for grams.