I've always hated the Book of Job because I thought the lesson was ruined by letting Job get all his stuff back.
Then I read Jack Miles' interpretation of it in "God: A Biography" in which he demonstrates that the Bible's precedent for clever wordplay means that the ending cannot be taken at the face value it currently is.
For example, the RSV has Job recanting by saying:
"I know that thou canst do all things,
and that no purpose of thine can be thwarted.
'Who is this that hides counsel
Therefore I have uttered what I did not understand,
things too wonderful for me, which I did not know.
'Hear and I will speak:
I wil question you, and you declare to me'
I had heard of the by the hearing of the ear, but now my eye sees thee;
therefore I despise myself, and repent in dust and ashes."
Which God finds suitably humble and returns all his stuff. (Except the dead kids.)
Miles puts a lot of detail into why this passage should actually be translated in a compltely different way. After God thunders and fumes, Job has nothing to say but:
"You know you can do anything.
Nothing can stop you.
You ask, 'Who is this ignorant muddler?'
Well, I said more than I knew, wonders quite beyond me.
'You listen, and I'll talk,' you say,
'I'll question you, and you tell me.'
Word of you had reached my ears,
but now that my eyes have seen you,
I shudder with sorrow for mortal clay."
Job does what no man had ever done: he stands in judgment of God. God is so shamed by this judgment that he restores all of Job's health and wealth (but not the dead kids). And then from the end of the Book of Job to the end of the Tanakh, God is silent: he never speaks directly to humankind again.
And when he does surface, it's later, as Christ, a figure through which God can experience human suffering and attempt to redeem it. So it looks like the real lesson in all this was learned by God, not Job. So in this light,its actually my favorite Book.