The key to using highlighters and markers effectively lies in "selective marking" and "color-coded management." Research shows that proper use of highlighters can improve information recall by about 15% to 20%, while excessive highlighting can actually reduce reading efficiency. Therefore, learning should focus on highlighting key points and logically layering, using different colored markers to form a clear knowledge structure.
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The most common mistake when using highlighters is "highlighting the entire page," which causes key points to be submerged in a sea of color. In practice, it is recommended to limit highlighting to 3-5 key points per page, including:
For example, a study of 500 university students showed that students who used highlighters to mark key paragraphs could remember more than 70% of the key information within 20 minutes of review, while students who did not highlight only remembered about 50%.

Using different colored highlighters and markers allows for rapid information classification. For example:
This "color coding method" not only improves review efficiency but also allows for logical organization of notes in a short time, reducing the time spent flipping through pages.
Markers can be used not only for annotation but also for short annotations on the edges, forming a dual memory pattern of "annotation + explanation." Research shows that dual stimulation of vision and text helps the brain solidify information more firmly within 24 hours. For example, when learning English vocabulary, using a marker to mark parts of speech, pronunciation, and example sentences can improve memory accuracy by about 18%.
The effectiveness of highlighters is greatly reduced if annotated notes are not reviewed. We recommend using the "spaced review method":
Combined with color-coding, you can focus only on specific colors during review, achieving efficient recall and knowledge organization.
High-quality highlighters and markers significantly enhance the learning experience:
The core concept of using highlighters and markers is "less is more, color-coding, and combined review." Mastering this method will not only improve memory efficiency but also make your notes more organized and clear, truly achieving efficient learning.