"Calvin and Hobbes" I consider Bill Watterson, one of the most talented cartoonists of the 20th century. I simply adore his work. Here's a selection of his work. Check out more stuff from http://www.calvinandhobbes.com .

"Sky Wise" by Jay Ryan of Sky & Telescope. View the full collection of his pictorials on astronomy and the universe at http://www.skypub.com/tips/skywise/skywise.html . Below are some snippets of his work.