What's the difference between your id and your ego? Or a narcissist and a hedonist? In 150 paired definitions, this wide-ranging psychology primer resolves any confusion. Written by clinical psychologist and psychology professor Dr. Fiona Starr, What's the Difference? Psychology offers clarity through: Snappy explanations of all the big-ticket psychology topics: A review of key figures in psychology; An easy-to-grasp format that introduces terms in conceptual pairs; An accessible dip-in, dip-out design. Read the book as a whole or choose concepts that spark your interest. As you go, you will enrich and deepen your understanding of why we think, feel and behave in the ways we do.