For the Jane Austen, Pride & Prejudice fanatic. If you open the book, one side is the text, and the other is the annotations. They range from what Bingley & Darcy's income is in today's dollars, to descriptions of a particular chaise or carriage, to definitions of words not commonly used today, to notes about how certain passages develop a character in the book. As a fanatic, I found it all fascinating. Well maybe not all. Some of the notes are definitions or explanations that are really obvious. I just skimmed over those and loved the rest.