I understand that Shopify only offers electronic payments, such as credit cards and PayPal. But if you want to do it the way it was done back in Houdini's day, I'm happy to accept Checks, Money Orders, and even Cash (but that's done at your own risk).
All you need to do is Contact Me with the book you want and provide your address. I will calculate the shipping and email you back the total with my address where you can send the check. Easy.
Don't let modern technology come between you and Houdini!
