Informational interviewing involves obtaining information and career advice through conversations with people working in a desired career field. It helps learners understand what courses and experiences are valuable, get insights into the realities of different jobs, and discover their own strengths and weaknesses. Informational interviews are not job interviews - they last 20-30 minutes and are less stressful. They help improve communication skills and build confidence. Proper preparation includes researching the career, dressing appropriately, and having thoughtful questions prepared without asking for a job. Follow up includes sending a thank-you and evaluating the information received.