This really would be interesting. I'd like to see data on overall completion % for ebooks. Assessing those books which tend to be completed once started would h

This really would be interesting. I'd like to see data on overall completion % for ebooks. Assessing those books which tend to be completed once started would help identify the more interesting books. Combined with top selling book lists, this would provide a good filter to decide on potential new reads and could form the heart of improved book recommendation services.