At Wikipedia, points of view (POVs) – cognitive perspectives – are often essential to articles which treat controversial subjects. Wikipedia's official "Neutral Point of View" (NPOV) policy does not mean that all the POVs of all the Wikipedia editors have to be represented. Rather, the article should represent the POVs of the main scholars and specialists who have produced reliable sources on the issue.In Thought du Jour Harold Geneen has stated:The reliability of the person giving you the facts is as important as the facts themselves. Keep in mind that facts are seldom facts, but what people think are facts, heavily tinged with assumptions.Hard facts are really rare. What we most commonly encounter are opinions from people (POVs). Inherently, because of this, most articles on Wikipedia are full of POVs. An article which clearly, accurately, and fairly describes all the major, verifiable points of view will – by definition – be in accordance with Wikipedia's NPOV policy.Each POV should be clearly labeled and described, so readers know:A Wikipedian contributor might be unaware that his writing is biased, if he harbors (possibly not fully aware of it) assumptions about the popular opinion of one's area, country, culture, language, ethnicity, etc. Generally, this comes out in one of several ways:Of course any article can be "unbalanced" because contributors have more knowledge of, or are more interested in, particular aspects of a subject than in other aspects. This is not "wrong", but making such an article more balanced is encouraged. For example, suppose there is an article about highways that is mostly about the US. A German who encounters this should not complain about Americocentrism, but alter the article to approach the subject from a wider perspective: what can be said about highways in general, that applies worldwide? Begin the article with this, and then discuss the specific variations in different countries.All articles are (ideally) completely dominated by a sane, adult human perspective. That does not count as bias. It would be just plain silly to protest that an article about bone cancer is biased because it is only told from the patient/doctor perspective and we are not told what bone cancer has to say on the subject. Cancer cells do not have thoughts, so any attempt to include their perspective would only be inventive. Such perspectives are sometimes allowed. If a credible expert has tried to explain, say, human–cat relationship from a cat perspective, a summary of this might make a good addition to an article about domestic cats. Likewise, it might be interesting to read how severe schizophrenics view people without mental health problems in an article about severe health problems. However, you cannot demand that such an addition is necessary for NPOV.The English language Wikipedia is inherently biased towards readers and speakers of English. English is the de facto primary language in the United Kingdom, the United States of America, Canada and other nations, and will naturally attract many more editors from those nations. Additionally, English is widely accepted as a second language and a lingua franca across the globe. English language Wikipedia articles should be written for an international audience.Some simple examples:Something else that you need to watch out for are "obvious" facts which are not necessarily obvious to people from other areas. Examples include the level of support a political movement has or does not have (and particularly referring to "major parties" in a nation without linking an explanation of which parties these are – which may not be obvious to foreign readers), the names of the movements, demographic facts, geographic facts.Also be careful to avoid an English-speaking Point of View. Although country-specific and similar POVs are often easy to spot, this can be harder to spot.While there is a strong argument to simply present history and politics in English the way they have always been presented in that language, there's a much stronger argument for sticking to neutral point of view, and avoiding reports of long-standing English cultural assumptions as fact. For one thing, there are many people in Ireland, Australia, Canada, New Zealand, Caribbean nations such as Cayman Islands, etc. who speak English as a first language, who do not share these. In South America, the EU, Russia, India, China, etc. many people learn English very early, often simultaneously with another tongue. It is simply wrong to believe that everyone reading an article in English will understand UK or US cultural assumptions or find it non-controversial to make certain statements or use certain terms:Other key points to watch for when adapting material from country-specific sources:In addition to language and geographic issues, it is important to avoid other types of assumptions or biases about people. Some examples of biases to avoid are:A good rule of thumb in avoiding POV is to never refer to someone in a way you would not want to see used to refer to yourself or a loved one.In articles about works of art, games, TV series and other subjects without estimable values, Wiki editors will often try to pass on POV opinions by writing under a pseudonym, e.g., "some fans think the New York Yankees are the greatest baseball players ever". Unless you can provide a survey, a review or any similar type of source for your praise, it does not belong in a Wikipedia article. The correct way to phrase the sentence would be: "The Yankees are Major League Baseball's most successful franchise with 27 World Series championships".