Over the years, I’ve read and edited hundreds of college application essays. I’ve seen the good and bad (and very bad). Discover how to avoid the Common App essay's most common mistakes.

1) Using Bloated Thesaurus Speak

Most students think a higher vocabulary (read: thesaurus) will make their essay sound better. That instinct may work for your more formal academic essays, but it’s wrong in the case of the personal statement: the essay should sound how you speak, not a formal academic letter. "Thenceforward" and “heretofore,” for example, seem way too formal and almost sound funny in this personal context. Would you ever use those words in real life? Didn’t think so.