1. Footnote: This is the most common annotation format and usually appears at the bottom of the page. Each footnote has a number (such as 1, 2, 3, etc.). ) and associated with the corresponding reference at the bottom of the page. Footnotes can be used to quote sources, provide additional information or explain terms.
2. Endnotes: Like footnotes, endnotes also appear at the bottom of the page, but they are listed at the end of the whole document. This format is usually used for a large number of reference materials or information that need to be quoted frequently.
3. Margins: Margins appear at the edge of the page and can be used to add notes or explanations to the text. Margins are often used to provide additional insight into a particular paragraph or sentence.
4. Insert comments: This kind of comments is inserted directly into the text, usually enclosed in brackets or marked with special symbols (such as * or). Inserted comments are usually used to provide an explanation or definition of a specific word or phrase.
5. Notes on references: This note lists all the sources cited in the paper. They are usually formatted according to a specific citation style (such as APA, MLA or Chicago style) and may include author's name, publication date, title, publisher and other information.
No matter which annotation format you choose, you should ensure that the annotation is clear and accurate, which is closely related to the theme and argument of the paper. The purpose of annotations is to provide readers with more information and help them understand and evaluate your research.