> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# AuthorsList Object (IAuthorsList Interface)

This object represents a list of authors of an FB2 or EPUB file. This is a collection of child objects of the [AuthorInfo](/fine-reader/engine/api-reference/document-related-objects/authorinfo) type. The AuthorsList may only exist as a subobject of the [DocumentContentInfo](/fine-reader/engine/api-reference/document-related-objects/documentcontentinfo) object.

* The indexing of ABBYY FineReader Engine collections starts with 0.

* The foreach statement in C# (for each in Visual Basic .NET) can be used to manipulate the collection.

* If the list of authors is empty, the value of the [Author](/fine-reader/engine/api-reference/document-related-objects/documentcontentinfo#author) property of the DocumentContentInfo object is used. If the IDocumentContentInfo::Author property is empty too, the value of the Author attribute of the output file will be "Unknown Author".

## Properties

| Name                                                                                                                  | Type                                                                                                                                                                                                                  | Description                                            |
| --------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ |
| Application                                                                                                           | [Engine](/fine-reader/engine/api-reference/engine-object-iengine-interface), [read-only](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties#readonly_properties)         | Returns the Engine object.                             |
| Count                                                                                                                 | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only                                                                                                     | Stores the number of elements in the collection.       |
| [Element](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/element-property) | [AuthorInfo](/fine-reader/engine/api-reference/document-related-objects/authorinfo), [read-only](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties#readonly_properties) | Provides access to a single element of the collection. |

## Methods

| Name                                                                                                                    | Description                                                            |
| ----------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------- |
| [AddNew](/fine-reader/engine/api-reference/supplementary-objects-and-methods/addnew-method)                             | Creates an AuthorInfo object and adds it at the end of the collection. |
| [DeleteAll](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/deleteall-method) | Removes all the elements from the collection.                          |
| [DeleteAt](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/deleteat-method)   | Removes an element from the collection.                                |
| [Item](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/item-method)           | Provides access to a single element of the collection.                 |

## Related objects

<img src="https://mintcdn.com/abbyy/6udH-pkk8zkVafYH/images/fine-reader/engine/authorslist.gif?s=951b2c158631be54a0a84882fbac3d1e" alt="AuthorsList" width="168" height="86" data-path="images/fine-reader/engine/authorslist.gif" />[](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/element-property)[](/fine-reader/engine/api-reference/document-related-objects/authorinfo)[](/fine-reader/engine/api-reference/document-related-objects/documentcontentinfo#authorslist)[](/fine-reader/engine/api-reference/document-related-objects/documentcontentinfo)

[Object Diagram](/fine-reader/engine/api-reference/object-diagram)

## See also

[AuthorInfo](/fine-reader/engine/api-reference/document-related-objects/authorinfo)

[DocumentContentInfo](/fine-reader/engine/api-reference/document-related-objects/documentcontentinfo)

[Working with Collections](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-collections)

[Working with Properties](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties)