For example, how to take notes in advanced mathematics, college physics, computer language, English and other subjects or reading notes should be different. I personally think it varies from person to person, not from subject to subject. The way of taking notes depends on everyone's different learning methods and habits. Of course, every subject has a general direction, such as more theories in science and more accumulation in liberal arts. However, this method is like chicken soup without a spoon. Even if you know these truths, you won't know how to practice them most effectively. Personal advice is to find out your study habits first, and then make your own special note-taking methods according to your habits. Others are others, and you are you. I think there can be such a question: What are your different learning methods/habits for each subject? Then explain in detail your doubts about taking notes and what kind of answers you want to see. Should the font be neat when taking notes, so as to facilitate reading later? If recording speed is required, it is strongly recommended to change from handwriting to electronic version. Not everyone can be fast and write well at the same time. If you are not in a hurry to take notes, write better and do some typesetting, so that you can find it easily when reviewing later. The saved search time and inner pleasure are more worthwhile than scribbling. At present, many mobile devices have note clients. What are the advantages and disadvantages of using non-paper notes compared with paper notes? There is nothing to ask this question. Regardless of its advantages and disadvantages, suitability is good, and unsuitability is bad. If you do too many questions, be sure to ask the pros and cons. Besides, it has nothing to do with efficient note-taking.