Originally Posted by Turtle91
According to Amazon Kindle Publishing Guidelines
it depends on book format:
But then they also recommend saving in 300dpi at a minimum size of 600x800.... who knows??
I haven't seen anything different for .azw3 ???
300 dpi is meaningless for display; it's a print setting. If you print it, 600x800 at 300 dpi is 2" x 3.something".
You can test this in an photo editing program. if the file is 600x800, changing from 300 dpi to 220 dpi or 72 dpi or anything else doesn't change the file size at all.