Notes from a lecture or teaching are written in the note-taking column; notes usually consist of the main ideas of the text or lecture, and long ideas are paraphrased. Long sentences are avoided; symbols or abbreviations are used instead. To assist with future reviews, relevant questions (which should be recorded as soon as possible so that the lecture and questions will be fresh in the student's mind) or key words are written in the key word column. These notes can be taken from any source of information, such as fiction books, DVDs, lectures, text books, etc.