Does there exist an equivalent for Master's degrees?

The strategy doesn't seem to be available anymore. The link gives me "404 - page not found".

Our group sells books for a nominal price of 5 euros. This doesn't appear as cultish and also makes people possibly commit to reading the book, since if you have paid for the book, it's more likely you'll actually read it. 5€ is a small price for a book, so our group members won't need to wonder if they have money for it.