Using a sample annotated bibliography, every students gets a chance to avoid common mistakes and shape the annotation according to all the rules and requirements. Luckily, there are not many of them and it is quite easy to provide a proper annotation structure. First, you should provide all the details about the source or the citation, like name of the author, title, publishing house and so on. It should be followed by an annotation (a brief summary) and your personal opinion on the subject. You should analyze the source, providing information on its use for your personal project or for the target audience. This section greatly depends on the demands of your professor.