Tha Amiga Rom Kernel Manual
or RKM was a multi volume series written/purveyed by Commodore Amiga
that documented the entirety of all of the Amiga
's various and splendid subsystems - Intuition
In earlier versions of the manual even the entire source code for the ROMS was published, but later on as
the company became more corporate they dropped it.
The RKM was written for geeks not suits like practically everything else associated with the Amiga so it really helped make the Amiga into a definite geek hall of fame contender.