You’ll be able to purchase the eBook, paperwork, and hardcover versions.
There are plans to release an audiobook version, but that will come later.
Once you place a preorder, you will be charged for the order. On release day, I will ship out all the preorders.
If you purchase the eBook version, it’ll be available on release day. The paperback version will be shipped on release day. So you should receive your copies within a week of release.