The range of learning does Faustus choose to give his life to considering is Necromancy. It is the assumed routine of speaking with the dead, particularly keeping in mind the end goal to anticipate what's to come. Faustus pick magic over his previous reviews since he needs influence, notoriety, and cash.
The most crucial to a reader's understanding of an expository text would be how effective the text is written to convey a clear and concise idea to the reader. It should be able to penetrate a reader's comprehension well and establish a clear way to get the point across.
I think that if people are well educated they tend to know better about the process, laws. Etc. Also, they can't be fooled very easily. Something along those lines.
