Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Penn & Teller (Penn Jillette and Teller) are Las Vegas headliners whose act is an amalgam of illusion and comedy. Penn Jillette is a raconteur; Teller generally uses mime while performing, although his voice can occasionally be heard throughout their performance. They specialize in gory tricks, exposing frauds, and performing clever pranks, and have become associated with Las Vegas, atheism, scientific skepticism, and libertarianism. Penn and Teller were introduced to one another by Weir Chrisimer. From the late 1970s through 1981, the three made up an act called "Asparagus Valley Cultural Society" which played in San Francisco at the Phoenix Theater. This act was sillier and less "edgy" than today''s Penn & Teller act. Chrisimer helped to develop some bits that continued on to be performed by Penn & Teller; most notably Teller''s "Shadows" trick, which involves a single red rose.