 Spin crossover compounds are molecules that can switch between two different magnetic states when exposed to certain conditions. These conditions include temperature, pressure, and light. When these conditions are met, the molecule changes from one magnetic state to another, resulting in a change in its physical properties. This phenomenon has been studied for over 80 years and is now being used in various applications such as thermal and pressure sensors, optical devices, and more. This article was authored by Philip Gutlidge, Anabee Gasper, and Young Garcia.