Interviews are common and have become a feature of spreading popular culture. Questions and answers seem easy, but they are very difficult in practice. No matter how carefully the questions are worded and how carefully the answers are recorded, there will always be some ambiguity. However, interviews remain one of the most prevalent and effective methods for researchers to understand others. The types of interviews are generally divided into structured interviews, group interviews and unstructured interviews. The following describes these different types of interviews.