Ability to sort products by quantity sold

Question

How can I add the ability to sort products by quantity it is sold? I may also need to add more filters like this on the site, but guidance on this first can walk me through what is needed.

Thanks in advance...

Answer 1

Please refer this inchoos's tutorial
http://inchoo.net/magento/magento-products/sort-show-products-by-sold-quantity-in-magento/