Pragmatic Typography
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I'm by no means a typography geek or design nerd but I gotta agree here. The Pragmatic books have always struck me as looking incredibly cheezy compared to O'Reilly, Manning, or Addison-Wesley technical books.
Just compare the quality of the Hunt/Thomas The Pragmatic Programmer (published by Addison-Wesley) to a typical Pragmatic Press book (published by Hunt and Thomas). The difference is striking.