I am glad you enjoyed what you read, though :)
I am glad you enjoyed what you read, though :)
For me, the bottom of that page could be something in essence like "Buy the book now for a 'pay what you want' price and get immediate access to X content." I'm not sure you'd need much more (email can come as part of that process, and I'd ditch the bitcoin only payments for certain levels - just simplify it and if you need the bottom price to be slightly more to cover card fees, just increase the price to cover them).
Put it all front and centre - if it's a commercial book, that's fine - don't try and hide it, show the value it has and make it very easy to give you money.
This is a step in the right direction, but hiding price until you sign up remains problematic, while the "I want to read more!" button for email submission is disingenuous.