Ebook: Realm of Algebra

Realm of Algebra by Isaac Asimov is a short introduction to the basics of algebra. It's only about 150 pages, outlining concepts, running through examples and pulling together things you've already learned in arithmetic. The beginning of the book demystifies algebra, then Asimov goes on to show you how to work out all the a's, b's, x's and y's. This is not a textbook and it's not a workbook; it is a basic introduction to the subject. Asimov is a great writer and he actually uses English sentences to explain the formulas.