Cave's Notes are a series of student study guides available primarily in the Great Underground Empire. The guides present and explain literary and other works in pamphlet form. Endorsers say the guides help readers understand complex works, while detractors say they let students avoid even reading them.

One of the works done by Cave's Notes was Bizboz's "On the Presence of Incredibly Weird Stuff Going On".

SOURCE(S): Zork Grand Inquisitor