Before all the Demonomicon issues came out, wasn't there a Spellcraft that dealt with the Demonomicon itself? Anyone know which issue that was in?
I think you are looking for the spellcraft section of Dragon magazine's issue #336, which is titled "The Demonomicon of Iggwilv". I am not sure if this is the first or only such entry on the topic, but I think it is the only recent article that fits your description. Hope this helps.
Roger. Thanks.
the book is also mentioned in the FC1 preview of the ToC. :)
;)