Comic Book Resources has been running a surprising and entertaining feature lately, Comic Book Easter Eggs, chronicling cross-references and cheeky winks in comic books and graphic novels. In their most recent column, they list a few guest appearances of Bill Watterson’s Calvin And Hobbes in other titles. Some of them are quite easy to spot, but others could easily fly under the radar. Unless you pay extra attention – just look at the page above fromÂ Adventures of Superman #494 (1992) byÂ Jerry Ordway, Tom Grummett and Doug Hazlewood. Splendid find!