Shelter-building is the process of creating a safe and protective structure for people or animals. This can involve using natural materials like branches, leaves, and mud, or manufactured materials such as wood, metal, and plastic. The main goal is to provide a space that offers protection from the elements, such as rain, wind, and extreme temperatures. In survival situations, knowing how to build a shelter is crucial. Techniques can vary based on the environment, whether in a forest, desert, or snowy area. Common types of shelters include tents, lean-tos, and igloos, each designed to meet specific needs and conditions.