barsoomcore
Unattainable Ideal
I should elaborate on what I said previously.
Keep your books focussed on one topic of your setting. UNLESS it's incredibly cool and you're a great writer and have a perfect balance of crunch, flavour, kah-hool and useful.
But then you'd be writing Oriental Adventures, maybe the single most-used book in my non-oriental campaign. You want a model for the perfect campaign setting book? That's it.
Keep your books focussed on one topic of your setting. UNLESS it's incredibly cool and you're a great writer and have a perfect balance of crunch, flavour, kah-hool and useful.
But then you'd be writing Oriental Adventures, maybe the single most-used book in my non-oriental campaign. You want a model for the perfect campaign setting book? That's it.