I'm happy to answer your question. General academic papers are divided into six categories, namely: thematic journals, authoritative core journals, important core journals, general core journals, general open journals and restricted open journals. An academic paper is a scientific record of new scientific research achievements or innovative ideas and knowledge of an academic topic in an experimental, theoretical or predictive way, or a scientific summary of new progress by applying known principles, so as to provide a written document for reading, communicating, discussing or publishing in academic journals or for other purposes. Academic papers can be divided into communicative papers and evaluative papers according to the purpose of writing.