Here are nine highly regarded and influential books that cover a range of topics within the field

"Thinking, Fast and Slow" by Daniel Kahneman

"Man's Search for Meaning" by Viktor E. Frankl

"The Interpretation of Dreams" by Sigmund Freud

"Influence: The Psychology of Persuasion" by Robert B. Cialdini

"The Power of Habit: Why We Do What We Do in Life and Business" by Charles Duhigg

"Quiet: The Power of Introverts in a World That Can't Stop Talking" by Susan Cain

"Drive: The Surprising Truth About What Motivates Us" by Daniel H. Pink

"Emotional Intelligence: Why It Can Matter More Than IQ" by Daniel Goleman

"The Social Animal: The Hidden Sources of Love, Character, and Achievement" by David Brook