Companion to Philemon

When is the last time you heard a sermon, Bible study, or even read the Letter to Philemon? For some the answer is "recently" but for too many the answer is "it has been a long time" or worse yet "never." Why is it that Philemon, though included in the Christian canon, is not read and studied as a text with theological depth that is helpful for serious study and preaching? In A Companion to Philem...