Coupled with the other essential FAA instrument rating pub, "Instrument Procedures Handbook," the "Instrument Flying Handbook" is an excellent introduction to getting an instrument ticket. The Instrument Procedures Handbook really gets into the thick of the procedures and regs, so you'll need both books. I've just begun my study and found both books very helpful. And, since Amazon makes a package deal for both titles, I couldn't resist.
Unfortunately, there's a great deal of information in the Instrument Flying Handbook (probably 50%) that is a repeat of the Pilot's Handbook of Aeronautical Knowledge or the Airplane Flying Handbook. Not a bad thing, but I found myself skipping most of the first half of the book thinking, "I already know most of this stuff so I'll come back to it later." The last third of the book gets into the rudiments of precision flying.
This latest version of the Instrument Flying Handbook is in full color, and even emphasizes glass panel layouts.
If you want to see both books and make your own judgments, they're available as free PDFs on the FAA web site.