|JG550-Field Guide to Encounters Vol1&11 By Dragon's Byte||
Was originally announced as the Marvelous Mystic Missive of Mighty Meek and Magical Monsters(image taken from the booty list found at the back of Nightmare Maze of Jigresh). Whether these books were actually released under that name is unknown.
Description supplied by the 1982 Judges Guild Catalog.
Field Guide to Encounters Vol1
Field Guide to Encounters Vol11