I was considering keeping this, but I came to the realization it is incredibly unlikely I'll ever have the desire to learn assembly on the 360. :-) Assembly Language Fundamentals 360/370, OS/VS, DOS/VS by Rina & Joshua Yarmish 768 pages, hardback $5 shipped. Tom Owad -- Sysop of Caesarville Online Client software at: <http://home.earthlink.net/~tomowad/>