Raman-FTIR microscopy combines Raman spectroscopy and infrared spectroscopy to provide detailed chemical and structural information about various materials without the need for sample preparation. Using the Renishaw InVia microscope, this technique enables the analysis of organic and inorganic substances, revealing spatial distributions, layer thicknesses, and crystallinity. It facilitates a broad range of applications, from pharmaceuticals to materials science, allowing for dynamic studies and the identification of unknown materials.