The Guide for the Perplexed
As translations, the targumim largely reflect midrashic interpretation of the Tanakh from the time they were written and are notable for favoring allegorical readings over anthropomorphisms. (Maimonides, for one, notes this often in "The Guide for the Perplexed".) That is true both for those targums that are fairly literal as well as for those that contain many midrashic expansions. In 1541, Elia Levita wrote and published the "Sefer Meturgeman," explaining all the Aramaic words found in the Targum.