There are lots of books that can give you a general idea and you can (also) take it from there and go by your own basic instinct.

Green Witchcraft (vol. 1) by Ann Moura

Earth Power by Scott Cunningham

AnimalWise by Ted Andrews

Dancing with Dragons by D.J. Conway

All of these offer insight to what certain images mean.

Peace and Love on your path to discovering the Mysteries...

Blessed be...