Of many books that you all read, how do you extract important points for easy retrieval and regular reference later? If Some of the passages are even good for daily reference or reminders, how does one practically get access to it daily in an easy manner, remember without needing to open the book.

Of many books that you all read, how do you extract important points for easy retrieval and regular reference later? If Some of the passages are even good for daily reference or reminders, how does one practically get access to it daily in an easy manner, remember without needing to open the book. Because often a lot of insights that we get from a book, for insight to be of practical help, must be easily accessible.