This document provides guidelines for effective interviewing and history taking. It discusses the phases of an interview, types of communication including verbal and nonverbal, and techniques for verbal communication such as open-ended questions, rephrasing, inferring, and providing information. For nonverbal communication, it emphasizes the importance of appearance, demeanor, facial expressions, silence, attitude, listening skills and maintaining a nonjudgmental approach. The overall goal is to effectively communicate with and obtain accurate health information from clients.