Wikipedia:What is significant coverage?

"Significant coverage" is an important concept in Wikipedia's general notability guideline (GNG) and other notability guidelines. To contribute to a topic's notability, sources are required to provide significant coverage. This page covers how this concept is generally interpreted in practice.

Official definitions
GNG defines significant coverage as follows: ""Significant coverage" addresses the topic directly and in detail, so that no original research is needed to extract the content. Significant coverage is more than a trivial mention, but it does not need to be the main topic of the source material.
 * The book-length history of IBM by Robert Sobel is plainly non-trivial coverage of IBM.
 * Martin Walker's statement, in a newspaper article about Bill Clinton, that "In high school, he was part of a jazz band called Three Blind Mice" is plainly a trivial mention of that band."

Some other notability guidelines provide additional details. Particularly, the guideline for companies and organizations, typically viewed as a more restrictive version of GNG, has a section on significant coverage.

Unofficial interpretations
Wikipedia editors have widely differing interpretations about how much detail is required for a source to qualify as significant coverage, with deletionists tending to have higher standards than inclusionists. The essay One hundred words argues that sources with at least 100 words of coverage of a topic generally count.