I'd like to have a butchers at Leisureguy's book, too. The problem I find with shaving/grooming books is...
They don't work as "tutorials" as a) it's really hard to explain shaving using words and a couple of pictures and b) what with everyone having different skin, hair etc. one technique doesn't work for everyone.
If they were simply product reviews, they'd have to be updated all the time and they would be very personal. What with everything and it's brother being reviewed on the web, and with submissions from a large group of consumers, it's easier to better gauge the effectiveness of something by googling reviews. This is why sites like Basenotes are pretty valuable when compared to something like... "Perfumes: The Guide" by Luca Turin and Tania Sanchez. Although it's an excellent book and well worth a read if you're interested in fragrances, some people really like things that other people really don't. The popularity of MWF and HBS soap escapes me, but other people swear by them - neither of us are wrong, though. Factor in stuff like allergies and you could go on forever.
Part of the fun of this stuff for me is the discussion generated.
That said, "Sharp Practice" is funny and well-written, and it's got some nice anecdotes and stories. It's ideal for someone who wants to start giving a little more thought to their daily routine. It also made me want a straight razor for a bit, so it's obviously well tuned in to the easily-swayed male consumer's mind.