Interspersed with graphic sketches of life aboard a whaling vessel, and a wealth of information on whales and 19th-century whaling, Melville's greatest work presents an imaginative and thrilling picture of life at sea, as well as a portrait of heroic determination. The author's keen powers of observation and firsthand knowledge of shipboard life (he served aboard a whaler himself) were key ingredients in crafting a maritime story that dramatically examines the conflict between man and nature.