This document discusses the application of biophilic design principles in architecture. It begins with an introduction to biophilia and the human affinity for nature. The evolution of biophilic design theory is then explored, from Erich Fromm and Edward O. Wilson's early work developing the concept of biophilia to more recent frameworks proposed by Stephen Kellert and others. Key biophilic design elements and patterns are summarized, including Kellert's nine biophilic values and the 14 patterns of biophilic design by Browning et al. Methods of quantifying biophilic design, like biophilic design scorecards and green building certifications, are also outlined. The document concludes by providing a comparative analysis of how various