Final answer:
Interviewing an expert via e-mail is a convenient and efficient method to gather information and insights from professionals in specific fields.
Step-by-step explanation:
Interviewing an expert via e-mail is a common method used to gather information and insights from professionals in specific fields. It is a convenient and efficient way to conduct interviews, especially when the interviewee is unable to meet in person or have a phone call. When interviewing an expert via e-mail, it is important to follow professional email standards and compose a respectful email requesting a brief discussion or exchange of information. This allows the interviewee to provide authoritative perspectives on the topic being researched.