Whilst all types of editing clearly have some overlap, there are crucial differences between developmental editing and copy editing. Copy editors are technicians of language. They look at a manuscript from the perspective of grammar, punctuation and diction (aka, word choice). Developmental editing is obviously also concerned with these detailed aspects of writing, but tends to consider all these elements under one umbrella. The copy editing that follows a developmental edit reviews the manuscript with a more single-minded approach, looking at grammar, inconsistencies and substituting weak words and phrases for more powerful alternatives.