Cover Characteristics: Book Covers featuring Silhouettes

You don't even KNOW how tempted I was to make this week all red, white and black covers. I don't know why so many silhouette covers are those colors, but I'm sure not complaining. Anyway, this was not hard, but it still wasn't as easy as I thought it would be to find ten I really loved. Part of the problem is that there's a big overlap between this topic and book covers featuring circus, and I...