Hi Pam! Good to see you here.
For general designs that can be adapted to jewelry, look to any
pictorial book series. Dover Books has a lot of copyright-free image
books. For books about jewelry design, start with your local public
library. I remember the IRC library system had a great section
related to jewelry and jewelry making.
I know you are asking a more in-depth question, but I’m so tired
tonight I don’t have the wherewithal to really answer that. I’m sure
there are other people here who will have great recommendations.
See you next week,