Monster Manual II is (surprise) the sequel to the Monster Manual.  Written by the same person (Gygax), in exactly the same format.  Published in 1983, the Monster Manual II heralded the re-design of all the AD&D manuals to this style (though Fiend Folio was not reprinted after roughly 1982, so it escaped the redesign).

Condition: Excellent condition! See Photos - No names or markings