In one of my favorite, easy-read, writing-craft books, Write Away, mystery author Elizabeth George talks about her writing process as she begins a new book. She first writes detailed ideas about the plot. She also researches the setting, often with trips to the location she's thinking of using. And she always puts together a character list.
I didn't know what she meant by character list, but I soon found out they consist of many pages of stream-of-consciousness ideas about each main player in her book. If you read Write Away (highly recommend), you'll see an example from her novel, In the Presence of the Enemy. She shows the entire character list for one of her main characters, Eve Bowen.
