I am not sure if that was a joke or just to test if it was a chatbot.
I am not aware of anything not discussed in which book to buy and those are all outdated.
MikroTik has this https://mikrotik.com/mfm/books, but it is mostly a rehash of what's in the previous link. About the only exception is The MikroTik Scripting Book by Nigel Bowden, There are some newer ones, but not English language.
The MikroTik forum, MiktroTik documentation, youtube videos, and trying things on real mikrotik routers in a lab is how I learned what I have about MikroTik.