Why, you're welcome. And thanks for your input. I'll look at those references tomorrow. The 10-block of ISBNs is still the best deal for the self-publisher.

DRM (Digital Rights Management, a form of anti-piracy encryption)...I don't plan to use it. They say it gums up certain machines and can be stripped away. The work's going to be pirated anyway, no matter how it's protected, so I'll just keep the prices low and hope that people will buy instead of steal.