The world is loaded with information. We enjoy immediate access to most of it through laptops, smartphones and the Internet. There is, however, a great deal of information that professionals cannot reach unless they talk to their clients, patients, job applicants and others. When the purpose is to obtain accurate, relevant and reliable information, no professional interpersonal encounter has been subjected to more systematic and critical research than police interviews of victims, witnesses and suspects of crime. Knowledge derived from this research has formed a novel, more effective way to gather information. The concept is known as Investigative Interviewing, and throughout Interviewing Techniques for Professionals, the authors demonstrate that research-based methodology is applicable and likely to advance professional interviews within a wide range of professions. Based on the extensive feedback the authors have received as advisors and trainers from a highly diverse group of clients and participants, including prosecutors, judges, journalists, investors, recruiters, physicians, researchers, NGOs, lawyers, HR employees, immigration- taxation- child protection- food and competition authorities, to name a few, it has become evident that the concept of Investigative Interviewing is of great utility value, far beyond police stations. The pressure to perform and conclude creates working environments vulnerable to errors related to decision making. These challenges are not unique to the police. Unfortunate consequences directly related to poor interviewing can be of a social, financial and human nature. Without professional interviewing techniques, including a methodology that stimulates open mindedness, physicians, head-hunters, intelligence personnel, finance analytics, journalists and others run the risk of confirming their premature assumptions. In worst case scenarios, resulting in deaths caused by wrong treatment, refugees are deported only to face torture or executions, bankruptcy and so on The techniques presented by the authors were specifically developed to guide interviewers through a mental and practical process that will allow them to remain open-minded to all possibilities, mitigating problems associated with premature decisions. A growing body of research shows with consensus that interviews conducted by professionals without theoretical knowledge and a methodological approach can, at worst, lead to self-fulfillin