Sarah, The short answer is that, yes, you can substitute butter for shortening in cookies. It will, however, change the texture and appearance of the end product. Because shortening is 100% fat and butter is roughly 85% fat and 15% water, cookies with butter in them tend to spread more during baking.
Usage: Yang is a popular first name. It is more often used as a boy (male) name. People having the name Yang are in general originating from China, France, South Korea, United States of America.
Gene Luen Yang began making comic books in the fifth grade. He has since written and drawn a number of titles. His 2006 book American Born Chinese was the first graphic novel to be nominated for a National Book Award and the first to win the American Library Association's Michael L. Printz Award.