body wellness:
The Obesity Code by Jason Fung, MD
mental wellness:
Getting Naked by Patrick Lencioni
Taming Your Gremlin by Rick Carson
self-actualization:
You Are A Badass by Jen Sincero
The Happiness Project by Gretchen Rubin
relationships:
Crazy Good by Steve Chandler
5 Love Languages by Gary Chapman
spirituality:
A Course In Miracles (made easy) by Alan Cohen
Conversations with God by Neale Donald Walsch