A review by slowshows
The Art of Character: Creating Memorable Characters for Fiction, Film, and TV by David Corbett

yes it did take me literal months to finish this (my own lack of ability to read anything, nothing to do with the book) but i found it to be very helpful and insightful. if you are a writer and want to find new ways to shape and get to know your characters, this book has some really creative and stimulating exercises