This document contains 3 reaction papers written by a student on architectural theories. The first paper discusses the author Louis Wirth's theory of "Urbanism as a Way of Life" and how urban environments influence social behaviors. The second paper examines the book "Learning from Las Vegas" and how it highlighted the use of symbols over physical form in architecture. The third paper analyzes the concept of phenomenology in architecture and the importance of evoking emotional and experiential qualities in buildings.