Daniel Schacter is a prominent American psychologist known for his research in the field of memory. He is a professor at Harvard University and has contributed significantly to our understanding of how memories are formed, stored, and retrieved. His work often explores the different types of memory, including episodic memory and semantic memory. Schacter is also recognized for his concept of the "seven sins of memory," which describes common ways that memory can fail us. These include issues like transience, absent-mindedness, and bias. His research has important implications for various fields, including education, psychology, and even legal settings.