Dive and Travel Grand Cayman

The Galapagos Affair

Adventure Guide to Ecuador and the Galapagos Islands

A Naturalist’s Guide to the Galápagos Islands – 2nd Edition

Birds of Western Ecuador: A Photographic Guide

Dive and Travel Cozumel

Field Guide to the Birds of Ecuador

Dive and Travel Turks and Caicos

The Ecuador Reader: History, Culture, Politics

Dive and Travel the Bay Islands of Honduras

My Family and the Galapagos

This Thing Of Darkness

Colombia's Diversity Problem: A Speech on Tourism