This is one of what I call sketchback drawings. As I mentioned in my March 10, 2009 post, sketchback drawings are drawings I do on the backs of sketchbook covers. They can be on the back of the front cover or either side of the back cover. I did a drawing of the first Ghostbusters logo before, which you can see here . I decided to do another one for Ghostbusters II . I've always been a fan of Ghostbusters and I'm really excited about the videogame and the third movie coming soon. I've been reading on the Ghostbusters wikia and in the videogame there's an Ecto-1B, which is basically the Ecto-1 upgraded again and renamed. The decals from the Ecto-1A upgrade are still on there, except they switched the GB2 logo back to the GB1 logo. And there are new gadgets on the roof, most notably a big barrel shaped thing in back. Slimer is back. All the original cast are back voicing their characters, except for Sigourney Weaver, Rick Moranis, and I'm not sure if Annie P