What about cover illustrations? What pixel size and resolution do we want to save those files as? Is 700 x 500 pixels a good guideline for the cover illustration, or is that only for large tables? I definitely plan to hire a graphic artist for the cover, but I'm assuming I'll need to tell them what the dimension requirements are…right?

Also, how do color images work with the Kindle? Do we want to make a greyscale version of images for the Kindle, or is it better to leave it as a color image (having insured that it looks good in greyscale before doing so)?