One Dang good book would be selected threads and photographs posted on this forum.
Just Trapsing through DD in 20 chapters (20 DD threads)
would be fun.
As to Insanity -- Truly great programmers are insane too.
LOL!
I think DD would be in a category on its own.
*chuckle*
The mapping is slow due to having to learn most of the editor proggy's functions and commands on the fly.
The next portion in the map calls for twin elevators.
The way to create functioning elevators in the game is somewhat beyond me at the moment.