1. The document provides an overview of Psalms, explaining that they are poetic songs intended for singing praise to God that express the full range of human emotions. 2. Psalms use parallel structures and imagery like similes and metaphors since Hebrew poetry does not rely on rhyme. Common parallel structures include synonymous, antithetic, and repetitive parallelism. 3. The Psalms were written by several authors including David, Asaph, the Sons of Korah, Solomon, and anonymous authors. They can be categorized into different genres like hymns, laments, and wisdom psalms.