EG2 cover timelapse from Brian Biggs on Vimeo.
This was such a fun video to watch - Go on over to Brian Biggs' blog to read all about his process for designing the cover for his latest book, Everything Goes In the Air. Read about the whole series on his website, here.
The Brownie & Pearl books, illustrated by Brian Biggs were well read in our home, so I think I'm overdue to check out this series.
Also of note: Brian has a vast amount of images, videos, reviews, and quotes on his site. It's a really great model for other authors/illustrators.