I understand why the other reviewer has 0 positive feedback!
If you have never seen any vector calculus before I doubt you'll make it to chapter 4. And if you do, that is as far as you'll go for a few months!
However, this book is very short for what it covers. So you can move fast. It fast but concisely transitions from basic operations with vectors to the main theorems and concepts of vector calculus like Green's theorem, Line integrals etc. Then it has an introduction to tensors and finally covers some good applications of these operations and theorems.
I assume that for somebody that wants to rapidly move from basic vector operations to advanced concepts in vector calculus this is a good book and, if completely and patiently followed, it allows the reader to understand the subject to a level good enough for any undergraduate course that I can think of. Having said that, as I say above, I dont believe somebody with just some basic understanding of the algebra of vectors can finish this book without going nuts. Thus I recommend that, if you havent done that already, read some elementary vector calculus, geometry (with vectors) and basic differential equations before you read this. Basically, that the author assumes no previous knowledge is "partially correct" but doesnt necessarily mean that it will be the best book for such a person. This is indeed the case for many books like this one.
Overall, I found it very good, concise and stright to the point giving good definitions and explaining the important bits of vector calculus necessary to follow any course in electromagnetism, elasticity theory and the like. In other words, if your aim is applied fields like these Ive just mentioned, read this book and do the exercises then the theory of these applied subjects will be much easier to follow. But if your aim is just pasing an exam, I guess this will be too much work! Its taken me ages to move on, you learn the stuff, but not fast enough to pass an exam. Then again I dont care about exams but thats why Im reading it.