The document outlines the 7 stages of writing an effective summary: 1) carefully read the passage and identify its structure and purpose, 2) reread and label key ideas and terms, 3) write one-sentence summaries of each section, 4) write a thesis statement that expresses the central idea, 5) write a first draft combining the thesis and summaries while eliminating repetition, 6) check the summary against the original for accuracy, and 7) revise the summary for coherence, style, and grammar. An effective summary should be comprehensive in including all important points, concise by eliminating repetition, coherent by sounding like its own piece of writing, and independent by using one's own words without introducing comments.