Annotated Bibliography can be confusing if you have never written one so here are some academics and librarians with examples and guidance to assist you through the process.
This short guide from Cornell University on How to Prepare the Annotated Bibliography is excellent and I recommend you take a look at it. The link is embedded here and you can also access by clicking here.
The Purdue OWL also includes several examples and notes on the process here.
Finally a very comprehensive source is available from USC: Annotated Bibliography
