DiCarlo hardcovers are now being offered for sale by both Amazon.com and Barnesandnoble.com. Both are offering discounts off the $46.95 list price. Though the numbers probably will fluctuate, Amazon's retail price is now $42.26 per volume and Barnesandnoble's is $41.83.

Of course, less expensive softcover and e-book formats remain available. Visit the DiCarlo book website's Purchase page to view popular purchase options: http://buffalomob.com/p-purchase.html