Biophilia is a vast topic as old as the Ancient Greek civilization. In modern civilization, interest in topic has been piqued by Edward O. Wilson’s seminal volume on the topic, and formalized with the introduction of the WELL Building Standard. While studying for my WELL AP exam, I came across a document outlining 14 unique phases of this area from Terrapin Bright Green. Biophilia is generally defined as our connection to the world of living things, and the following phases help connect those ideas to design details and concepts.