The Twin Code by Amy PirkleMy identical twin sister and I share an understood code. One might argue that it is written into our DNA, but certainly it developed long after we were born. The Twin Code presents many unspoken, yet implied, principles that Sara and I follow. These rules have been printed and bound as a swing panel accordion (a book structure developed by Hedi Kyle), so that the text is hidden on panels behind a large image of a DNA strand. The book structure