Explore the mysteries of the ocean with "Adventures in Ocean Exploration" authored by Robert D. Ballard. This hardcover book is a signed edition by the author himself and is published by National Geographic. The book is perfect for all age groups, including young adults, ages 9-12, and adults. The book takes readers on a thrilling adventure of ocean exploration, from the discovery of the Titanic to the vast depths of the ocean. It is a perfect gift for adventure lovers and those who wish to learn more about the ocean. So, grab your copy of "Adventures in Ocean Exploration" and experience the wonders of the ocean like never before.

Robert Ballard, a pioneering marine scientist, he has dived in submersibles in all of the planet's oceans, contributed to such scientific puzzles as plate tectonics and deep-ocean biology, and located wrecks ships all over the world, including the doomed liner Titanic and the battered hulk of the German battleship Bismarck.