Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Should be 5 stars

I just purchased the Kindle edition. The book itself is fantastic. I am writing this 1 star review because the charts/graphs cannot be seen on the kindle. I called the Amazon help line..they were wonderful as always.I originally thought it was a problem with the Kindle but was told that it was the way the book was entered. As soon as the problem is corrected and my charts are fixed the rating will jump up. I just want them to know it needs fixing.I'm sure this is an easy fix. Looking forward to the update. William