Thanks DASX. #60 has a fun/playful free-idea feel to it with a nice tie-in to books that is somewhat subtle. is it a butterfly? not clear, but fun if the books are wings - terrific analogy for a library that learning allows you to take flight! integrating it further into maybe north or maybe even the letters "N" and "C" (and maybe "P" & "L") could be a nice way to customize it? not sure how, but again the feel of #60 is nice!