When property is sold, bought, or appraised for a loan or estate, someone who is not involved in the transaction must examine its value. A real estate appraiser gives that objective analysis. The appraiser inspects the property, assesses its location, and conducts research. He or she may conduct interviews with people who have a relationship to the property and study public documents. The estimate takes into account both the condition of the property and recent sales of similar properties. The appraiser also photographs the property's outside and interior. Then a written report is created. This is a career for folks who appreciate stepping away from their desks to inspect property and perform research. However, the ability to create a coherent written report is also required. Some appraisers are salaried staff of banks, insurance firms, or other financial entities. Others work as independent contractors. When a property owner dies, for example, the heirs may commission an appraisal to re-set the value of the property for tax purposes. Some vocational institutions provide courses in real estate valuation, although most appraisers have other experience in fields that help them evaluate property. For example, knowing about architecture and construction materials, or the history of a community, can be beneficial. In most states, real estate appraisers are required to be licenced. They take the National Uniform Appraiser Examination, which is given once a month.