This type of summary will have all the same features as a main point summary, but also include the reasons and evidence (key points) the author uses to support the text's main idea. This type of summary would also use direct quotes of key words, phrases, or sentences from the text. This summary is used when it is necessary for the summary writer to fully explain an author's idea to the reader. The key point summary involves a full accounting and complete representation of the author's entire set of ideas. One reason to use this sort of summary would be if the writer intended to respond to the author's arguement using an agree/disagree response model. In such a case, there may be some of the author's ideas that the writer agrees with, but others with which the writer disagrees.