Check your own use of paragraphs by reading the first sentence to see if it outlines the paragraph's main idea.
The effective use of paragraphs can be seen in writing when the reader can gain an overview of the content by reading the first sentence of each paragraph.
Paragraphs, whether denoted by a new line and an indentation or a line break, provide a structure for your writing.
The end of a paragraph represents a significant pause in the flow of the writing.
Other useful guides: Using the comma, Sentence structure.
Writing of any length requires subdivision into a number of points or stages, and these stages are expressed in a paragraph.
It is a useful rule always to have three stages in a paragraph: introduction, development and conclusion.
The introduction makes the purpose of the paragraph clear so the reader can read the paragraph with this purpose in mind.
The length of a paragraph depends on the idea being treated, but if a paragraph is shorter than 2 or 3 sentences, check to see if it is not really part of the previous or next paragraph.
If your paragraph is longer than half a page, check to see if the idea would be better explained in two or more paragraphs.