Calculating upload size and time.
I did a 160 page 10×8 hard cover book with 180 photos. Upload file was about 600 MB. I can’t believe a normal sized book upload would be over 1 GB unless you are importing way oversized photo files. I have let my book upload overnight, and found it completed and ready for me to complete my order in the morning. On a revised edition I transferred the .book file to my laptop and opened in Booksmart, which took about an hour to digest, before taking it to an Internet coffee shop with a super fast connection, where it took only a little over 1 hour to upload the book. That was about 10 times as fast as my Wildblue satellite connection from home.