Still find Moby Dick best book as introduction on whales ever. Melville is a great author.
Royalista - look up the true story of the whaleship "Essex", which inspired Melville's
Moby Dick. A good resource is Nathaniel Philbrick's
In the Heart of the Sea: The Tragedy of the Whaleship Essex : excitement, adventure, foolishness, bravery, cannibalism... what more could you ask for?!?