As of November 10, 2025, Amazon has resumed direct sales of most of our books in print editions. If you choose to purchase through Amazon, you should now see “Shipper / Seller Amazon.com” on the Amazon page for the book. Be aware that this status has changed several times over the last few weeks and […]





Colorado HB 10-1193 and Amazon’s Response
The state of Colorado just passed a statute (House Bill 10-1193 (PDF)) that is targeted at out-of-state retailers who sell into Colorado. It is an attempt to improve collection of sales and use taxes (which residents owe on purchases, even if the retailer is from out of state and does not collect those taxes). […]