Electron microscopy is a powerful imaging technique that uses beams of electrons to visualize small structures at a very high resolution. Unlike traditional light microscopes, which use visible light, electron microscopes can magnify samples up to millions of times, allowing scientists to see details at the atomic level. This makes it invaluable in fields like materials science, biology, and nanotechnology. There are two main types of electron microscopy: transmission electron microscopy (TEM) and scanning electron microscopy (SEM). TEM transmits electrons through a thin sample to create detailed images, while SEM scans the surface of a sample to produce three-dimensional images. Both methods provide critical insights into the composition and structure of materials.