Annotated bibliographies are lists of references used in a paper. These may include articles, books, and various documents, with each one annotated in the form of a short paragraph of around 150 words explaining and describing the source i.e. what it is and how it is used. An annotation serves the purpose of informing readers of the quality, accuracy, and relevance of a cited source. Generally speaking, annotated bibliography tips are prepared in advance of any important writing project, e.g., a dissertation or thesis.