They are the foundation of how reliable information on Wikipedia is built and offer a model for all:Neutral point of view: Wikipedia articles must present information fairly as far as possible without bias. Verifiability : All information must come from published, reliable sources that readers can check themselves. : All information must come from published, reliable sources that readers can check themselves. No original research: Wikipedia doesn’t publish personal opinions or new interpretations—it summarizes what has already been published elsewhere from reliable sources. All content must be grounded in published, reliable sources including books, research, news articles and academic publications.