The Twin Code by Amy Pirkle

My 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 reinforces the idea that as identical twins, our genetics are identical and this code of rules is written into our DNA.