Want To Join In Order To Get A Useful Report

Trying to understand complex joins (or complex to me, at least).I have a series of tables which have data I want to join in order to get a useful report. Most of the joins work fine, e.g.:

SELECT DISTINCT *
From Documents INNER JOIN LookUpTable
ON LookUpTable.ObjectId = Documents.LastVersionOwnerId

This give me the name of the person who owns the most recent version of a document, as the LookUpTable table maps userid numbers to names.But I also want to correlate the OriginalOwnerId column from the same Document table with its LookUpTable counterpart. I can't figure out how to get that second join, for the same tables, to work.