A book is a scholarly written manuscript based on research, experiment, scholarly literature or standard of practice which can be applied in its discipline. Book is written by an author or co-authors.
A chapter book a scholar written manuscript based on research, experiment, scholarly literature or standard of practice which can be applied in its discipline. Chapters are written by different authors. .
A collection of unpublished academic article written by different authors on the same subject or theme. Or, a compilation of unpublished articles by a single author on the same subject or theme.
A written text on a particular subject which contains explanation, note, discussion, exercise and sample answers to help student better understanding on the subject.