Final answer:
To improve readability and comprehension, construct paragraphs consisting of 12-15 printed lines and use approximately 20 or fewer words per sentence.
Step-by-step explanation:
To improve readability and comprehension, it is recommended to construct paragraphs consisting of 12-15 printed lines.
This helps to break up the text and make it easier to read.
Additionally, using approximately 20 or fewer words per sentence can also improve readability and prevent sentences from becoming too complex.
By following these guidelines, you can create more concise and effective writing.