Amazon’s new “search inside” feature unlocks a wealth of analysis about the texts of books. “Thanks to a sensational subsection called Fun Stats, you will know just how many words you are getting per dollar and per ounce with each book. For instance, “War & Peace” by Leo Tolstoy gives you 51,707 words per dollar, while “Obliviously On He Sails: The Bush Administration in Rhyme” by Calvin Trillin delivers only 1,106 words per dollar.”