Basics: Advice and examples
A short video on how to write a book review:
BBC4 audio book review: BBC4
The New York Times mp3 Book reviews (and book talk): NY Times
You can also have a look at the Youtube book reviewers... but please remember that they are not professionals, and select what is relevant:
Don't hesitate and send me the interesting links you may have found, and remember as you prepare your own book review...no plagiarism!