To give you an example of the true art of illustrating characters, here's a sample of Prest's initial description of Todd:
In that snidbit alone, you get an eerie and striking sensation about Todd and you know that tale promises to be a riveting one. Prest paints such a vivid picture in my mind that I have an instant image of what Sweeney Todd is like. He even lets us know what the patrons think of the strange barber.
Have you read The String of Pearls? Tim Burton's movie and Johnny's Deep's portrayal of Sweeney Todd: The Demon Barber on Fleet Street, was different, but equally thrilling. Want to know more about the original tale, here's my creepy classic review.