A "long essay" refers to a piece of writing that is longer than usual. It contains more words and takes more time to read and write compared to a regular essay. Full definition
It is a bit of punctuation in an otherwise long essay about the man, and doesn't change the context of anything about written or said about him. (religion.blogs.cnn.com)
If you're requesting information, avoid long essay questions and forms that are awkward to navigate. (entrepreneur.com)
The recruiters don't have the time reading long essays. (blog.kickresume.com)