Unfree labor refers to work that individuals are compelled to perform against their will, often under threat of punishment or coercion. Common forms include slavery, where people are owned and forced to work without pay, and indentured servitude, where individuals agree to work for a specific period in exchange for passage to a new location or other benefits. Another form is forced labor, where individuals are made to work under duress, often in harsh conditions, without proper compensation. This can occur in various industries, including agriculture and construction. Additionally, human trafficking exploits vulnerable individuals, forcing them into labor or sexual exploitation.