To get a better feel for the Christmas traditions across all of Czechia, pickup our new book called Curious Czech Christmas. Travis Dow and I added a ton of more content to our previous 2016 first edition, added new info graphics, cover art, and revamped some of the recipes.
We think you will really enjoy it. It is available on the Amazon Marketplace online in paperback and Hardcover.
https://www.amazon.com/dp/B0DPN638JF