Complex sentence: In The Austere Academy, she was defined by Lemony Snicket as a nasty, rude, dreadful, filthy, ghastly, and violent person and he also states that you should be as far from her as possible.
Split into simpler sentences: In The Austere Academy, she was defined by Lemony Snicket as a nasty, rude, dreadful, filthy, ghastly, and violent persom. He also states that you should be as far from her as possible.