Six Pillars of Self Esteem by Nathaniel Branden is probably the best and most popular one. Really good.

Another good ones are:

- Mindsight by Daniel Siegel
- The Family by John Bradshaw
- Self-Thearpy (Internal Family Systems) by Jay Early
- Focusing by Eugene Gendlin
- Trauma Release Exercises by David Berceli

Are all really good too and all help in different ways