The books- Transurf Yourself vs Master of Reality, why is the later one officially available while being more recent than the prior
From what i could look up on the internet, Transurf Yourself came much earlier than Master of Reality which was 2025, the Master of reality book though is available officially on amazon... but the Transurf Yourself book is just available by some random reader translating it with ai and so on.. is there a reason why?
Also from what i read on this community it seems that zeland in recent years updated his methods/introduced new methods and so on..
So was wondering which book takes into account these new teachings, also if someone has read(i have seen few posts on the differences here) but which should i invest my time reading?