Here is a selection of books about mollusks from Florida, from the identification of shells to the ecological characteristics of species.
The oldest are available in Florida public libraries, including that of Miami Beach.
A special mention for Molluscan Communities of the Florida Keys and Adjacent Areas published in CRC Press, which presents more than 1200 species, of which 550 are illustrated in color plates. A must have.

We should also mention the Jacksonville Shell Club website, an excellent source of information about the Florida malacofauna .