- Each book has been vetted by a recognized expert in that particular field; his/her credit appears on the About the Author page.- Photographs are by award-winning photographer David Hall. His pictures have appeared in various magazines including National Geographic, Audubon, Smithsonian, and Time.- More than any other series, Undersea Encounters paints a more complete picture of marine life, including books on habitats and animal behaviors in addition to specific animal books. It is a natural fit for 3-5th grade curriculums and could be used in the classroom.