Treatises contain detailed coverage and practical tips. These contain thorough explanations of the law and citations to relevant cases, statutes, regulations and other secondary sources.
Study Aids can provide a good introduction to a new area of law and are useful when beginning your research.
Law Review Articles often discuss new, developing areas or recommended changes in the law.
Scholarly books discuss the law from different interdisciplinary viewpoints. All books linked are ebooks available through the library.