How to Count Words in DITA Topics or Maps

There are various ways to count words in Oxygen XML Author Eclipse plugin:

Open a DITA topic in the Author visual editing mode, right-click anywhere in the editor, and select Text > Count Words.
Open a DITA map in the DITA Maps Manager view. Click the Open map in editor with resolved topics toolbar button. In the newly opened DITA map, right-click anywhere in the editor and select Text > Count Words.
Open a DITA map in the DITA Maps Manager view. Click the Configure Transformation Scenarios toolbar button and choose the DITA Map Metrics Report transformation scenario.
Tip: Along with the word count, the DITA Map Metrics Report Transformation provides additional information (such as the number of processed maps and topics, content reuse percentage, the number of elements, attributes, words, and characters used, and more).