How is the editing cost of the paper calculated?

At PSM Author Services, we calculate the quote by word count. This means that you are not invoiced for the time that is not spent in the most efficient way.


Even a child knows how valuable the forest is. The fresh, breathtaking smell of trees. Echoing birds flying above that dense magnitude. A stable climate, a sustainable diverse life and a source of culture. Yet, forests and other ecosystems hang in the balance, threatened to become croplands, pasture, and plantations.

We’re a studio in Berlin with an international practice in architecture, urban planning and interior design. We believe in sharing knowledge and promoting dialogue to increase the creative potential of collaboration.

What is the difference between standard and premium rate editing?

Standard editing offers you language optimization, including editing and proofreading to ensure that your text flows as if written by native English speaker. Our premium service adds an additional level of proofreading and offers you a further assessment of the language and flow of the document. The senior editor will assess the flow of your manuscript and the clarity once the English-language has been corrected.