Carefully read the text several times, note the main points. Think about the meaning of each part of the text.
Determine the theme of the story is its main idea. Divide the text into parts. From each part, write down key words or sentences.
Make a detailed plan, highlighting in it the main parts and sub-items. The paragraphs and subparagraphs mark which parts need to be reduced or removed altogether.
The plan also note the main points that you need to pay special attention and that need to minimize.
Long and complex sentences, replace the simple designs, removing the detailed description and the extra clarification (if it is not important). Write a shortened version of the text according to the plan, including key words and sentences. Do not forget about the connectivity and consistency of your written text, read it several times. Let's see if you have missed important information. Check the text for spelling and stylistic errors.