This book was recommended to me by my friend and fellow author T.E. MacArthur. I concur with her premise that, no matter where we are in the authorship/publishing game, we can all learn something new.
In this book, author Jessica Page Morrell not only writes about creating the baddies (antagonists and villains) across genders and species, but about how fear itself works. In order to play on the psychology of fear in a reader, Morrell maintains, authors need to understand the biochemical nature of the emotion.
There are chapters on writing female baddies, antagonists, out-and-out villains, and anti-heroes, as well as writing baddies for children's and teen-focused literature.
There's a lot to take in from an author's perspective here, but all of it is useful and will doubtless be used as reference material time and again.