I did a pre buy in April, 2021. The book release was November 23,21. I received an email that it was mailed out November 17. Well, here it is December 1 and no book. The tracking link doesn't work so I tried email their support address. Undeliverable. Finally found a phone number and customer service said it was in Arizona. I live in Las Vegas. Still no book. Everyone else has received this book from other companies. When I called they said it was a big order and there was nothing they could do. I will never order from them again.