John Peña is a longtime friend of mine and a terrific artist. He's currently a fellow at the Fine Arts Work Center in Provincetown, Massachusetts. Over the years he has worked on a wide range of projects, including commissioned murals, a "Conflict Kitchen" that cooked popular dishes from foreign countries the United States has troubled relations with, and "Unnatural Translations," a series of natural events (rainfall, tides, etc.) as acted out by human bodies.
Over the last year, John made a series of playful line drawings where he would draw a significant memory that happened to him on that day. They are now all scanned and posted online to view at http://www.dailygeology.com/. Like the rest of his portfolio, I recommend checking it out.
More on the Conflict Kitchen.