Harris has a very distinctive and striking style, one which is instantly recognizable as "This is a John Harris cover", a thought which is typically followed by "and it is wonderful."
Take a look at the full image of "Twin Parliaments of Pyrrus", it is a piece done specifically for Loncon and is based on a John Scalzi story, "The Back Channel", which was part of The Human Division (also, see here for a different version of just the art)
All images are used with permission.
|Twin Parliaments of Pyrrus|
|Ancillary Justice, the full cover|
|Ender's Game: The Formic Nurseries|
|Judge of Ages|
|The Human Division|
|The Road to Fire|