- Use light pencil (or sticky notes) so the book can erased easily.
- Be systematic in your markings so that you can find the information you need easily.
- Use abbreviations and symbols to save time.
- Don't overdo it.
- Include date, page number, source and/or your initial.
- Highlight information that relates to your area of interest.
- Avoid highlighting more than 20% of a text on a single page as it leads to the phenomenon known as "over-highlighting".