This textbook is much better than the one that is currently a bestseller (Stewart).It explains concepts and examples clearly, showing every step so that we don't have to wonder how did something happened.It is best suited for someone who doesn't have a lot of time to spend on reading long discussions of theorems... and for someone who doesn't want to go too deep into material and wants to quickly get the concepts. But don't think it is some Dummies or Made Easy guide, it is still a textbook that takes time to read.What I like most about this book is that the authors' style of writing is very clear and friendly: Not many big words or abstract phrases.