Students need the best teacher, so you need examples, because examples are the best teacher. All the examples in this book are fully worked, and help you do math better. And this book is for your skill of algebra, and you will grow the skill through examples. Some examples may look too easy or too hard. It all depends on your skill of algebra. Whatever your skill may be though, you can grow yours if you follow the steps in each example. Each is detailed so that you can learn those tools fast, and increase your caliber quickly as well as properly. And this book covers equations indicating circles, that is, equations for circles. So it helps understand what such an equation is about, how it gets made and what it does or how it behaves, and you can see what you can do with it or how to use it. And of course, I can go more of blah-blah-blah, and anyway, end up with saying that this book is the best ever, and is so great to buy. So what is good, and how good is it? What author in the world is saying that his or her own book is just so-so or bad? So you may want to take a look at the actual book, and read some pages in it. Where then, is the book? You can look at some sample, which is a good amount of excerpt, and you can get it downloaded using the link as follows: https://www.createspace.com/Preview/1099336 The link above belongs to CreateSpace, which is part of the Amazon group of companies. So no worry about getting something bad. May your math run very well. Seong R. Kim B.S. Math. Michigan Tech. Univ. M.S. Math. Rensselaer Polytechnic Institute