Basically there are 3 types of editing. Here they are along with a definition of each.
“Proofreading means examining your text carefully to find and correct typographical errors and mistakes in grammar, style, and spelling.”
A line edit addresses the creative content, writing style, and language use at the sentence and paragraph level.
the goal of a copyedit is to address flaws on a very technical level – to make sure the writing that appears on the page is in accordance with industry standards. This is like an incredibly high-end proofread. Internal consistency means your plot, setting, and character traits don’t have discrepancies
Richard L. Wren
IN HIS NEW CAREER AS AN AUTHOR, RICHARD DESCRIBES HIMSELF AS TALL, DARK, HANDSOME AND A LIAR. A FOURTH GENERATION CALIFORNIAN, A SAILOR, FATHER OF FOUR BEAUTIFUL AND SUPPORTIVE DAUGHTERS, AND HUSBAND TO ONE OF THE BEST WIVES OF ALL TIME. [MORE]