Maybe I’m the only person in the industry who thinks this, but a book about CSS hacks seems like a step backward for me. I will go out on a limb to say that many web designers who feel that a CSS hack is the only way to solve a problem probably have a flaw in their code.
Don’t get me wrong, hacks have their place, but for me they are a last resort to correct a problem. Do you think that teaching newer CSS-based designers how to hack around browser inconsistencies rather than analyze their code a bit deeper is the way to go?