Hi all, I am in my first year Ph.D. My supervisor gave me a topic and asked me to write a review article. This is the first time I am writing a review articles. So I have few question

1. How to do a literature review. How far I am I suppose to go? 10 previous years or more or less?

2. Can I use material from reviews articles that are already there on that topic?

3.Are there any other useful tips?

Please tell me.

Thanks,
Smiley