Books can provide comprehensive overviews or extra background and introductory information that is not covered in journal articles. If you are looking for historical information or theory, books are a great place to start.
Books are much more comprehensive than articles and aim to tell you everything about a topic. They can be quite long! Journal articles are much shorter and cover a very specific aspect of a topic.
Sometimes you can tell from the title if an item is a journal article or a book. Article titles are much more detailed while book titles can be more general.
The anatomy of a scholarly book is consistent, whether it is a print book that you find on a library shelf or an ebook that you find online in Sofia. It should have a title page, a copyright page, a table of contents and in many cases, but not all, an index.The Parts of a Scholarly Book [0:58 minutes].
Books can be written by one person (or a team of people) or they can be assembled by an editor, with each chapter written by a different person. The chapters in an edited book are thematically linked with each individual chapter covering a very specific part of that larger theme.