This template adds a page to Category:Books to be merged.

Tag all pages that should be merged, and optionally specify one location to hold the discussion.

{{merge|page to merge with|optional reason|optional discussion page}}

For example,

{{merge|Electronics/Measuring Instruments}} on Electronics/Diagnostic Equipment
{{merge|Electronics/Measuring Instruments|same topic and audience}} on Electronics/Diagnostic Equipment
{{merge|Electronics/Diagnostic Equipment|Talk:Electronics/Measuring Instruments}} on Electronics/Measuring Instruments
This directs any discussion to Talk:Electronics/Measuring Instruments