internal medicine

This book has a lot of important information that anyone taking the USLME should know. It has pretty good questions and answers and I like how the book explains the various USMLE topics. It's much easier reading through this book then some long textbooks. However, I also used the following which is also available on amazon.com:
Microbiology Study Guide: Key Review Questions and Answers by Patrick Leonardi
This questions were on target with the type of questions asked on the microbiology section of the boards. Get both books.

I have just passed Step 1 and I do believe that this book helped me to get a good score. Despite the fact that the questions in this book do not mimic the exam's questions they highlight many details, which may be missed even in good review books. If you use only one book to study one subject, you will definitely miss some important facts. To cover those facts I did the following. First, I studied the subject using the main review book and answered questions in it. Than I answered questions in this book and always found missed important details, which were not mentioned in my main textbooks but were covered here. In other words, I would advise to read this book before the exam.

This review book is not up to date, specifically the questions are in a format nowhere near USMLE's exam. Memorize the newest edition of First Aid.