Yes, it is, and The Counter-Creationism Handbook sits next to Darwin, Dawkins, and Diamond on my shelf. It would be a Good Thing if folks in other bullshit-fighting arenas had the level of scholarship exhibited by Mark Isaak and his collaborators.

(Hell, every time I see a "bingo card" ridiculing an Other Side's arguments, I wish its creators had the time and scholarly dedication of the talk.origins folk.)