Be selective when you highlight. Only highlight the most useful and important information.
Consider using a color-coding system: blue for key words, yellow for important ideas, pink for explanations, and so on.
Use visuals to help you determine what’s important – bolded words, texts in boxes, headings.
Look for verbal signals such as transition words that could indicate a conclusion, a contrast, or an emphasis.
Use other symbols and marks to identify important ideas or connections in the text. For example, place a star next to especially significant ideas, or underline an important idea and highlight the keyword(s) it contains.