There is no uniform regulation on how many study notes to write in party member, depending on the specific study content. If you study in a party class, the study time of the party class is not very long, usually about one hour, and there are not many notes, usually more than 1000 words. If it is the study notes of the whole party history, there will be tens of thousands of words in the study notes because there are many learning contents and a long learning time span.