[mothered]

So for the start i am building mining rig  rx 6600 xt any mark its not specific but i wanna do refund for then, so i would try amazon if its possible its not bigy if i wait 30 days on amazon.de or amazon.com
So i dont know which method to use for it

I understand your plans with the rig, but I can't be of assistance If you don't name the Item(s) to SE.

And for ebook i was planing to buy this
Plans and Services
Same prices since 2020, this ebook is an exclusive for sinister.li users only.
— Alpha (€ 60): A copy of the current version of the ebook.
— Beta (€ 70): A copy of the current version of the ebook, with limited support included.
— Gamma (€ 90) (most popular): A copy of the current version and ALL future versions of the ebook, with limited support included.
— Assistance (€ 15) (per SE): Extra dedicated support, included all the resources needed to move forward with a SE/Refund.
I mean would you preffer this book for beginner?

I haven't read any of the above eBooks.

It's best to contact the member/author with any questions and concerns.