Rating Definitions

EX - A top read; lacked any noticeable flaws.
VG+ - Close to excellent; only one or two small quibbles
VG - Enthused about it; very well done
G+ - Enjoyed it very much.
G - Enjoyed the book
Okay - Enjoyed but with significant reservations.  Only Okay
Poor - Wasn't good, wasn't awful.  Finished with difficulty
DNF - Did not finish 
DNW - Did not work for me
NR - Would not recommend