"Twain's Viciously Funny Marginalia".
Heaven help John Dryden, the translator of Plutarch's Lives, which, is "Translated from the Greek" into, as Twain annotates, "rotten English . . . the whole carefully revised and corrected by an ass." As you can see, Twain had some strong feelings about the English language and did not hesitate to talk back to his texts.
On the title page of Saratoga in 1901, Twain renames the volume Saratoga in 1891, or The Droolings of an Idiot.
What do you look for when annotating a text? Are you summarizing paragraphs in the margin? Are you talking back to the text the way Twain does?
When you talk back to a text you are engaging in critical thinking, probably the most important skill you should take away from college. In addition to writing memory prompt marginalia, what kind of annotations do you use that engages you with a text? In other words, what kind of critical thinking do you employ when reading with a pencil?