R-Maps, defined, explained

[Demada]

Where are R-maps defined and explained? I gleaned that they were part of Sorcerer (of the roleplaying advice sections, not the rules), but I cannot find mention of them in the book. I also have Sorcerer and Sword, which I havn't finished reading. I thought I'd save a bunch of trouble and just post it here (where I see most of the questions/comments about R-Maps). Where are they explained and defined? I get the basic idea (a graphical map of the relationships) but I would like to see them explained and defined further (such as the section in Sorcerer on Bangs covers, well, Bangs).

Thank you.

[montag]

that would be "The Sorcerer's Soul" then. pages 57 to 67.

[Demada]

Ah... darn. Don't have that. And I just ordered HeroQuest and Unknown Armies, so my RPG fund is tapped out for the moment. Thank you for your help.