Instruct: Classify a given review as either positive or negative.
Query: Informative & useful

Informative and useful, an easy-to-read guide, the author guides you step by step on what to do to stay in the U.S. legally. The author, Loida Nicolas Lewis, is a former INS attorney with over 15 years experience handling U.S. immigration matters. Co-author of How to Get a Green Card, she is licensed to practice law in both New York and the Philippines. Good luck!