3. The 7 Habits of Highly Effective People
Author - Stephen Covey
Yeah, interesting book that works on psychology. At one time I gifted someone on her wedding day a similar book by the same author titled
The 7 Habits of Highly Effective Marriage. Both books are classics and page turners.
OP, I don't know if someone has suggested
Why You Act The Way You Do by Tim Lahaye. It's also a good read. You may want to try it.