I'm the author of Learning Mathematics with the Abacus books and website owner of MathAbacus.com ( http://www.mathabacus.com ) where you can find these wonderful books that teaches you and your kids how to use the ancient calculator to eventually master the art of mental arithmetic.
The website, as some of you might have known, have already been up for a few months, and I have been getting great response from poeple from around the world who have downloaded the free samples as well as purchased the books and the ebook version of these books.
I'm just letting you guys know that the website is going to be having a major facelift, with the introduction of new books and some other interesting features. And because of this, some free downloadable files will no longer be available soon. So, before the website gets updated in 2 weeks, feel free to download as many preview pages possible from the Learning Mathematics with the Abacus books by going to the website at http://www.mathabacus.com
At the same time, look through the packages that we've prepared for you...