While any recommendation that I give would be biased, I will say that the book strikes a nice balance between the needs of those wanting to draw superhero-style comics and those wanting to draw, well, everything else. Daniel spends a fair amount of one chapter, for instance, explaining how to draw the hang and folds of various common clothes -- suit jackets, skirts, that sort of thing -- which struck me as something I hadn't seen much of in how-to comics manuals.
The reason, of course, is that superhero comics usually focus on anatomy, and the clothes are usually of the skin-tight spandex variety. In fact, often artists don't even draw outfits that could exist in real life -- they'd have to be painted on. Mainstream comics have rightfully gotten some grief for this over the years, though there seems little evidence of things changing.
(To be fair, this is reasonably in keeping with Tim Sale's artwork from The Long Halloween, though it was somewhat more stylized than the Arkham City skins.) Just as it's harder to draw figures in loose clothes than skin-tight outfits (because with the latter you're not really drawing the outfits at all), it's harder (and more processor-intensive) to model drapery in video games, because it's adding another level of complexity.
But anyway, go buy The Complete Guide to Figure Drawing for Graphic Novels, and do your part to combat sexist and unrealistic depictions of the human form, no matter the medium!