From language and clothes, to toys and the media, society inflicts unwritten rules on each gender from birth. Aiming to make people aware of the way gender is constructed and constantly reinforced, this diary chronicles the differences two parents noticed while raising their son and daughter. Adapted from tweets and blogs the couple kept throughout parenthood, this collection shows how culture, family and even the authors themselves are part of the 'gender police' that can influence a child's identity, and offers ideas for how we can work together to challenge the gender stereotypes that are ingrained in our society.