Books about books - notes for potential syllabus

It occurs to me that a general lit class about books about books (and/or reading, with a little writing thrown in) would be a pretty cool one to teach. Titles keep popping into my head, and I've decided to write them here, rather than on tiny scraps of paper which I will inevitably lose, or which some cat will puke on.

• The Master & Margarita by Mikhail Bulgakov (because manuscripts don't burn)
• People of the Book by Geraldine Brooks
• The Book Thief by Markus Zusak
• Matilda by Roald Dahl (because Dahl's description of Matilda's reading is probably the best description of what reading does that I have ever encountered)
• The Thirteenth Tale by Diane Setterfield
• Misery by Stephen King
• The Eyre Affair by Jasper Fforde (or one of its sequels, Lost in a Good Book or The Well of Lost Plots, which last is my favorite Fforde book)
• "The Composition" short story by Antonio Skármeta
  
• "Umney's Last Case" short story by Stephen King

What others am I forgetting? There are tons of books about books, or writing or reading - these are just the ones that come immediately to my mind. What other children's or YA books need to go on the list? And can I count Un Lun Dun as a book about a book?