Communicate your message
Grammar, syntax, usage, semantics, spelling, punctuation, sentence fragments, run-on sentences, ambiguous phrases, subject–verb agreement, parallel construction, tense, and voice.
In-house style formatting (or Chicago Manual of Style), tables and figures, numeration, footnotes and endnotes, headings and subheadings, front matter and pagination, and table of contents.
Copy editing + in-house style formatting (or Chicago Manual of Style), grammar, syntax, usage, spelling, punctuation, reference lists, citations, footnotes and endnotes, headings, layout, tables and figures, numeration, front matter, and table of contents.
Copy editing + technical editing, sentence and paragraph structure, section organization, theoretical strength, data analysis, style, presentation of ideas, and conceptual development.