Proofreading addresses spelling, punctuation, grammar, and syntax, as well as character spacing and mystery glitches that may be easy for authors to overlook after reading and editing their own manuscript.
Copy-editing addresses spelling, punctuation, grammar, and syntax, as well as micro concerns, such as consistency, and discrepancies in the plot, setting, and character traits. Sentence construction, style, and accuracy of the text are also addressed.
Line-editing includes all copy-editing issues, and also delves deeper to eliminate extraneous and overused words, run-on sentences, and redundancies. It also tightens dialogue, improves transitions, tonal shifts, and unnatural phrasing. Prose passages that don't read well due to bland language or confusing narrative digressions are edited for optimal flow. Pacing is improved—if needed—and words and phrases that will help to clarify and enhance the intended meaning are incorporated.
Proofreading: £0.01 per word
Copy-editing: £0.02 per word
Line-editing: £0.03 per word