.Be selective but thorough. You should not write down every piece of information in the book. Nor should you write down one fact per page. Finding the right balance of writing enough but not too much can be a challenge, but it is the key to taking effective notes. Using the strategy of reading a paragraph and then summarizing it can help you target the right amount of information.
* Depending on the subject and the level of the textbook, writing 1-2 sentences of summary per paragraph may be the right ratio of information to note-taking.