One of the weirder bits of the TTRPG world that I find myself wondering about sometimes, and this is very much a shower thought:
The accidental standardization of TTRPG books form factors.
Obviously, thickness will vary by the book, but TTRPGs (most of the big ones, at least, printed in hardcover) have evidently standardized on length and width, as far back as the 80s near as I can tell.
I wonder about that sometimes.
@laren It certainly makes shelving them easier.
My guess is something to do with the size of a sheet of paper, e.g. for a character sheet ... and using A4 in Australia made things slightly awkward with mostly US made books.
While my majority fit the usual size profile, Cthulhu, Pendragon, books across various editions of Dungeons & Dragons, Ars Magica, Amber, Castle Falkenstein.
I also have a decent half shelf of smaller size that I actually prefer - Savage Worlds, FATE, Blades in the Dark, Dungeon World, Burning Wheel, Fiasco, Cortex, Polairs, Microscope.
Then there are the weird size box sets that don't fit anywhere like Mouse Guard, Everyway.
