Spatial Transcriptomics is a new methodology for studying gene expression. It combines single-cell transcriptomic techniques with the spatial resolution of microscopy, allowing scientists to measure gene expression in the context of its environment. By imaging the tissue in 3D and mapping the transcriptomic data to the exact location within the tissue, researchers can gain a better understanding of how gene expression is regulated within the tissue. This new approach has a wide range of applications, from studying the molecular basis of diseases to the design of new drug therapies. In addition, it has the potential to reveal new insights into the development of organs and tissues.