I am doing Rosetta Stone (l.a. spanish) and some things I just don't understand. This is actually a decent book to read. The lessons are very small and it's to the point. This book works great in conjunction with r.s. It's just over $10 for crying out loud. In comparison to some, (like r.s. $500) it's way cheaper. Every language learning resource has it's place. This is great for an English speaker who wants to understand and make things simple, a little at a time. I like how the book starts with past tense. You aren't going to be fluent with one language resource. I'm not going to be fluent with just this book. You wont either. However, It's one cheap, fun, and effective way of solidifying some spanish in an English speaker. I'm having fun with it and it's a book that doesn't have much dust on it (if you are legitimately trying to learn spanish).