"Midrash Rabbah"
What is it?
Midrash is the name given to certain collections of writings that are ordered around the layout of the Tanach. The Midrash is distinguished by the high amount of Aggadah it contains. Aggadah is the name given to a certain kind of writing (be it history, story, legend, allegory, scientific observation or such like) that is not legal or concerned with law. The Midrash is, therefore, mostly collections of stories that relate to words, themes, or narratives in the Tanach.