For the first time since I started keeping track about a year ago, the percentage of the last 20 books I’ve read which are available on Kindle drops. This is because the book I just finished is not available on Kindle, where the one that just fell off the last 20 is available on Kindle, and none of the other books in the last 20 have become available since I last looked at the ratio. I have said that I will “officially want a Kindle” once my ratio is greater than 50%.