Smuggling is the illegal transportation of goods, typically across international borders, to avoid taxes or other regulations. It is a form of transnational crime, meaning it involves the breaking of laws in more than one country. Smuggling can be classified into two main types: people smuggling and goods smuggling. People smuggling involves the illegal transportation of a person from one country to another, often for the purpose of exploitation, while goods smuggling involves the illegal transportation of goods across international borders. Common goods smuggled include drugs, weapons, tobacco, alcohol, counterfeit items, endangered animals, and stolen goods. Smuggling can be done by individuals or organized crime groups, and is often done for financial gain.