If you cannot do it effectively, you should pay an editor. Venture capitalists can only dream of such massive returns on their investments. Any draft to be edited should always be typed or printed double-spaced, ie with blank lines between the lines of text. For clarity, make corrections in a different colour - preferably red. Use an agreed code of symbols, with marginal marks to ensure no corrections are missed.
Organisation Make sure the text is clearly divided, eg into sections, chapters, pages.
Middle heading The cold end is actually made up of several parts. Little heading The diaphragm is translucent. Guidelines Especially if time is short, concentrate on the first page or even the first paragraph. Make sure, too, that the last paragraph is worth reading. Many people will initially read only the first and last paragraphs.