I am a complete newbie so please bare with me.
Ill do my best to word this properly.
I am a mechanic and teach at a school, I have tons of books and study guides to help on all types of mechanic test. So what my question boils down to is.
Is it better to post all these study guides/test on the KDP platform or better to make my own website and collect emails ( I keep seeing money in the list )
Any comments or tips would be greatly appreciated.