My recommendation for someone in that boat would be to read the Kershner Instrument Rating Handbook. It covers airspace, ATC procedures, holds, etc., in a format that is actually conducive to reading. It is more of a textbook than a reference material so it won't put you to sleep after half an hour. Yes, it is more from a pilot's point of view, but the basics apply to both pilots and ATC, so its a good start. At a minimum, it will familiarize someone with the airspace system and will probably ease your understanding of the 7110.65.