This lecture explores the capabilities of the Scanning Tunneling Microscope (STM) beyond imaging, focusing on spectroscopy to study electronic properties and nanostructure assembly. Through examples with gold and niobium tips, the instructor demonstrates how STM can measure density of states, revealing insights into superconductivity. Additionally, the lecture delves into using STM for precise assembly of nanostructures atom by atom, showcasing its potential in studying specific effects and electronic properties.