Items are the simplest, but also most common entities in TextGrid. An Item may be a page scan or a chapter of an edition in the form of an XML document. A range of Items can be created via the green cross icon in the toolbar: XML documents, Text Image Link Objects, plain text documents, stylesheets and musical notation sheets. Items are dependent Objects: They can only be published as part of an Edition or Collection but not by themselves. Descriptive metadata for an Item generally consists of one or more titles of the file, its format, a rights holder, and the identifying technical metadata that is available for all Objects. To associate more sophisticated metadata such as an author or a source description with an Item, put it into an Edition and optionally associate a Work. For more information about how to put Items into an Edition or to associate a Work to an Edition, please see the chapter "References between Objects".