Discovery of Sound in the Sea (DOSITS) Book I: Importance of Sound in the Sea <http://www.dosits.org/book/> is a new, interactive electronic book (eBook) that contains high-resolution imagery, videos, and sound files, all in an interactive, touch-and-play format. It utilizes existing, peer-reviewed DOSITS content to provide a condensed electronic resource that focuses on how marine animals use, produce, and receive sound, as well as an overview of the effects of sound on marine life. Several of the topics discussed in this book are areas of current and active scientific research and new information is integrated into the eBook as peer-reviewed publications become available. The content in this book is based on the Discovery of Sound in the Sea (DOSITS) project, including its website - www.dosits.org <http://www.dosits.org/>. The DOSITS content is based on well-understood scientific principles, peer-reviewed literature, and high quality sources of scientific data. Independent, scientific experts, who specialize in underwater acoustics, have reviewed all of the eBook’s content. The DOSITS Project attempts to keep its content as up-to-date as possible, incorporating new research findings into its website twice a year. The book is available for MacOS, iPad, and iPhone. To view sample pages and access the iTunes link, please visit the DOSITS website at www.dosits.org/book/ <http://www.dosits.org/book/>. Questions? Please contact Holly Morin (holly_morin@uri.edu).