Depending on how you got here, you may have noticed that the site is now secure with an SSL certificate. I haven’t forced the move to https for fear of breaking something, but it appears to be working now.
I’ve also installed WooCommerce as my new direct-from-the-author store software. It should be faster and more user-friendly than the old ZenCart-based store was, and more importantly, now has an option for purchasing as a guest — no more being forced to create a password you’ll never use. Downloading e-book copies should be more user-friendly now, with a PDF-only download option for iOS users who couldn’t open the zip file. In testing, it doesn’t appear to be sending email receipts though, and I’m not sure what I can do about that just yet. If you make a purchase and don’t get a receipt, please be patient: I’ll send one manually until I get the automatic emails working, but it may take a few days to do so.