Cover design is a big deal in book publishing. Get the wrong one, and buyers pass you up in the store faster than you can hiss "don't judge a book by its cover!"
We have been very fortunate to have brilliant covers for Gary Corby's two books from Minotaur. His debut, THE PERICLES COMMISSION is one of my all time favorites:
The Australia editon went in a very different direction but I love it as well:
Now, what you and I probably wouldn't catch right away, but Gary (meticulous researcher that he is!) did was there is something very wrong about this coin! Here's his blog post about finding out what was wrong.