Any good sources for cephalopod ID on a global scale? I have two good ID books (A Guide to Squid, Cuttlefish and Octopuses of Australasia - Mark Norman & Amanda Reid / Reef Creature Identification, Tropical Pacific - Paul Humann & Ned DeLoach). These are great sources, especially as they focus on the area that I live...but I am hoping to find a source that encompasses all cephs, especially with a greater focus on squid ID as my books are a bit lacking in that area and they are more difficult for me to differentiate, especially while in the field. I know there is the Identification section of this site, but I am after a more easily accessible, quick reference guide. Any help is appreciated, cheers!