Journals, also known as periodicals, are collections of articles published regularly. Peer-review is a process where experts in a particular subject evaluate the research in an article before it is published. Unlike textbooks, peer-reviewed journal articles often contain more up-to-date and in-depth content. They are a fantastic source of criticism and critique and will help you to evaluate the law. Some journals focus on just one legal subject, eg Public Law, whereas others cover a variety of legal topics.