Index (from Latin index) is a indication or signal Of something. It may be the numerical expression of the relationship between two quantities or of different types of indicators. For example: "The Government is not happy with the new economic indexes", “The demographic index worries the authorities, who fear that the town will be empty in the next five years”, “Tickets sold out in all theaters are the best index of recovery of consumption”.
In a publication or book , the index is a ordered list of chapters, sections, articles, etc. which allows the reader to know what content the work presents and on which page each one is. It usually appears at the beginning or end of the book. Some examples where the term appears with this meaning are: "Look at the index where the interview with the Chilean author is", "The bad thing about this novel is that it has no index", “According to the index, the final chapter begins on page 84”.
The index is also the catalog of what contains a file or a library . It is an extensive document that can be consulted by the employees of the place to meet the requests of the users and deliver what they are looking for. Some examples: "Let me see in the index if we have that book on our shelves", "If you want to know in which room this material is stored, you should consult the index".
Finally, the second finger It is called the index. It is located between the thumb and the elder and is considered as the most expressive finger, since it is used to indicate something (directing it towards what you want to indicate), emphasize an exclamation (as part of body language) or deny (moving it towards both sides).
According to the meaning that refers to listings where the content of a work, of a library or of a file is reflected in a concise but direct way, to make an index, several considerations can be taken into account.
The onomastic indices are characterized by presenting a list of the names of the authors that are referenced in the work; this list is organized in alphabetical order They are used mostly in books with a lot of content, to allow a more orderly reading experience. In general, they are books that are usually consulted specifically (they are not read in a row) and thanks to the index, readers can easily find what they are looking for.
The terminology indices they also appear in very large books and are usually also reference books, for students or specialists of a certain subject. They are compiled in themes and subtopics , within two types of category: analytical index and subject index: in this way readers can easily find what they are looking for. These types of indexes usually accompany scientific or technical texts.
The bibliographic indexes usually accompany those texts that collect information from other books or articles of a certain subject. They are usually presented in alphabetical order, allowing readers to turn to the original source from which the content was taken or the author has been inspired. These types of indexes are printed at the end of the work and present the titles of the sources in italics accompanied by the name of the author and the publisher who was in charge of publishing it. In turn, some indexes are more specific and even present the page number where a particular concept or idea has been taken, etc.
exist other types of indexes , among which are the cumulative, content, thematic or topographic, among others.