Acting as a beta reader/proofreader, I will be reading as a member of your target audience who is willing to give honest feedback about the manuscript. I read the piece as a “pleasure reader” and will provide overall opinions to the author on what works, what doesn’t, what ideas are not clear, and what is not believable. Any glaring typos and errors will be noted. This step would hopefully come before any publication so advice could be used for any changes.
The price will vary based on book-length. There can be a flat book rate depending on what feedback you would like.