PSPO I study materials - help needed !!!

Hi everyone,

I have been using Scrum for quite a few years now (PM partly working as Scrum Master) and I decideded to go for the PSPO I certification so I can gain a better insight into the ""by the book" scrum product owner.

Sadly, up to this point, I could not find a single official book presenting the required info for the exam. All I was able to find was the generic scrum guide and a lot of invites to get into a classroom training.

I asked about CBT, but nobody seems to know anything about an online course.

Now that online courses seem to be completely out of the way, what book should I focus on in order to cover the exact courseware?

The official website has a long list of books, but I do not know which is the official study book. Without one it feels like someone is saying "well, but these books and hope that you will know enough by the end to pass the exam".

Thanks in advance,
Vlad