So where are the 12 Days PDFs?

Can't seem to find a link to the page ...

You'll find all of the free PDFs (including the 12 days ones) on the Free Downloads tab above. 

Yep; as first time user, I expected a banner or something on the main web page with 'Holiday PDFs - Click here!'

Audible managed to messs that up, too, though.

it will not let me checkout, it gives error message "You must select a shipping option before continuing."

but it will not let me adjust shipping options (they are PDF so what shipping options are there?)

too am having this issue.  Not sure what to do.

the shipping order problem only occours when you try to buy day 3 items with day 2 items in the order, buy day 3 seperately and you'll be fine.