Dawdling and Doodling

Jorge G. Cham, an instructor of mechanical engineering at the California Institute of Technology, has some advice that graduate students may be happy to hear. His motivational mantra: Stop studying and start procrastinating.

That's what Mr. Cham, who also writes a comic strip on graduate-student life, is telling audiences at colleges across the country, while promoting his new collection of cartoons. His strip, Piled Higher and Deeper, is a cult classic on some campuses.