Levels of editing
Copy editing: Editing a document for correctness, consistency, accuracy and completeness.
Developmental editing: Coordinating and editing a project from proposal to completion.
Proofreading: Final review of an edited document.
Structural editing: Editing a document for content and structure.
Stylistic editing: Editing a document for style, clarity, sentence structure, reading level and tone.
Style
Computer style: Refers to tags for different text elements, such as headings. A style has instructions for font, size, indentation, borders, etc. The choices are saved and given a style name.
Mechanical style: Refers to choices about mechanics, such as capitalization and numbering.
Type style: Refers to the type, e.g., bold or light, roman or italic, condensed or expanded.
Writing style: Refers to sentence structure, choice of words, tone and clarity.
Style reference materials
House style guide: A reference document that is specific to the company or organization. It specifies which option to use when several exist.
Style manual: A manual that lays out rules for language use, such as for spelling, italics, citation of references and punctuation. Many editors use The Chicago Manual of Style.
Style sheet: A list of choices that an editor makes for a document. It includes choices about punctuation, abbreviations, spelling, capitalization, hyphenation and other mechanical items.