I like reading Job and Ecclesiastes. You wanna know what the difference is between the two?

Job asks why things are so bad, because he knows things could be better. And, in the end, things end up great. job gets wealthy again, and he's happy.

The Teacher in Ecclesiastes talks about how things are so bad, and he realizes that things are basically as good as they're gonna get. It's always gonna be depressing and sucky. And, sure enough, after Solomon left the throne, Israel got split up, and the line of kings and the culture went to crap.

Ecclesiastes is more realistic.