Don't let the word throw you. Taxonomies are all around us. And we start playing with them from a very young age, when we sorted crayons into colours and separated our space Lego from standard bricks. Taxonomies are fundamental to how we think about and make sense of the world. And they have a special connection to content and to customers. This presentation was delivered to members of the IA/CS Meetup in Vancouver on May 16, 2016.