In the world of entrepreneurship, understanding your market is crucial for success. TAM, SAM, and SOM are three key metrics that help entrepreneurs gauge the size and potential of their market. - TAM (Total Addressable Market): The total demand for a product or service if it were available to everyone in a given market. - SAM (Serviceable Available Market): The segment of the TAM targeted by your products and services which is within your geographical and logistical reach. - SOM (Serviceable Obtainable Market): The portion of your SAM that you can realistically capture, usually in the short term.