Hi,This book has been recommended by a lot of users on this forum. But I wouldn't say there's any best book for LSAT. It'll depend on things like which sections you're weak at, whether you can implement their tips on actual LSATs..eg..some people doesn't like reading the stem before doing reading the passage (which most prep guides recommend LSAT test takers doing), so you can't say that's not the best book because it's recommending something that doesn't work for you. However, this book is better than quite a few on the market. Advantage of this book is that it uses actual (most questions) LSAT questions..unlike questions in other prep guides which are made up by the company themselves. Some people find this as a weakness because by the time you do the acutual questions in real preptests, you would've seen some of the questions already, and could probably answer them right right away...this would not be the best indication of your score because these are questions you've seen before. But you could avoid this problem by reading their techniques first, do actual preptests, and then check your answers with the ones Master the LSAT has and see if your explanations coincide with theirs...this would not be time efficient though.However, in short, yes this book is highly recommended by many people and hopefully, you'll find it useful.