ORCID allows the same work to be added to your ORCID record from different sources; these multiple connections make the information on your record more authoritative. Where these works have a common identifier, they are grouped together as they represent the same item. Works in ORCID are grouped together based on both their identifiers (such as DOIs, ISBNs, etc) and their identifier's relationship being set to self.
An identifier can have two relationships to a work:
self: the identifier refers solely to that work (grouping)
part of: the work is part of this identifier (no grouping)
A book would therefore have a self relationship with an ISBN, while a book chapter would have a part of relationship with the ISBN. If a work does not have an identifier, it can not be grouped.
Each group of works is shown in a single box. The default version of the work shown is the one you have selected as the preferred version. To see other versions of the work, click on the number next to the Preferred source indicator. You can toggle between different versions of the work by clicking on the source information.
You can set which version of the work you would like to display publicly by clicking on the Make preferred box.
The full details of the work can be displayed or hidden by toggling the arrow button next to the privacy settings.
You can choose the order in which your works appear by using the sort button on the right side of the works toolbar. The default display is chronological, but the order can be adjusted by anyone viewing your record.
Explore all help topics at Welcome to ORCID.