#guidebook__guide  something that offers basic information or instruction
  supertype:  #handbook__enchiridion__vade_mecum  a concise reference book providing specific information about a subject or location
  subtype:  #field_guide  a guidebook describing natural objects of some type that might be encountered in the field; "a field guide to mushrooms"
  subtype:  #roadbook  a guidebook describing the roads of a country; contains maps and (sometimes) a gazetteer
  subtype:  #travel_guidebook__itinerary  a guidebook for travelers
     subtype:  #baedeker  any of a series of travel guidebooks published by the German firm founded by Karl Baedeker

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