Jerry did quite a bit of painting as was a very talented abstract painter and obviously because of the fame he established as a musician, his artwork is highly valuable $$$
Yes he did,I think some of his art was just used in a charity fundraiser. A group was selling items with reprints of his paintings printed on them.
I found a book at the library (children's book) that he wrote and illustrated. It's been awhile, don't recall the details though. Harrington Street I think, just searched amazon, they have copies for under a dollar in new and used section. Lots of results on that search too, other artwork books there.
There are only about 100 Jerry peices that have been archived. So much of his work was giving as gifts and the records werent really keep up that great on so much of his work. Alot of people have lil sketchs that Jerry just doodled and then gave as a gift. I know some of the original sketchs that are no bigger than a post card gave been worth around 11,000 dollars...
my aunt works with a wine company "sonoma county wines", which was Jerry's favorite, so his art is now gracing the bottles...