Psychological books/ books on psychology

[moonlike]

Hi
Could you kindly let me know the difference between these two terms?
Do they mean the same?
Thanks a bunch.

[Raymott]

Hi
Could you kindly let me know the difference between these two terms?
Do they mean the same?
Thanks a bunch.

We'd generally call them Psychology books if they're about psychology.
If a novel has a lot of psychological detail, one could call it a very psychological book, even though it's not a psychology book.