Start with high-confidence coasts & shorelines books, then narrow by subgenre or adjacent topics.
The Outer Beach
Robert Finch
Coastal Harvest
Taku Kondo
Tampa Bay
Evan P. Bennett
Sea Room
Adam Nicolson
The Battle for North Carolina's Coast
Stanley R Riggs, Dorothea Von Der Porten Ames
Vanishing Sands
Orrin H. Pilkey, Norma J. Longo
Living Beaches of Georgia and the Carolinas
Blair Witherington, Dawn Witherington
Florida's Living Beaches
Blair Witherington
More Than Meets the Eye
Margie Patlak
The Gulf
Jack E. Davis, Jack Emerson Davis
The Last House Before the Sea
Gabi MartÃnez
By the Shore
Nancy Blakey
A Line in the World
Dorthe Nors