When the Content Manager publishes an entry, the system puts the action into a publish queue. Jobs in this queue are performed one at a time, albeit at a high speed. This eliminates the need to wait for an entry to be published before moving on to the next item. You can keep publishing items, and let the system manage the queue.
At any time, you can view the details of the entries/assets sent for publishing by clicking the Publish Queue link on the header. The details include time, entry, content type, version, language, user, environment, and status. You can also apply filters to the list and refine results based on the status, environment, publisher, language, content type, and date range.