Man has always been on a quest for answers and the search for molecules suitable to target ailments or their causes such as pathogens has intensified with the COVID-19 epidemic. The marine environment is home to 32 of the 33 animal phyla that are recognized with 15 types exclusively only marine! This diversity in genetics opens up the avenue for chemical diversity setting the stage for novel drugs. This book is the first to describe the promise of marine organisms as a treasure chest of molecules to target a slew of diseases. This is inclusive of what has been presented by research in terms of quelling symptoms of diabetes, CVD and rheumatoid arthritis-that are all chronic conditions still on the quest for a "perfect cure".