1. Thinking involves not just remembering information but applying it by making decisions, solving problems, judging things, or creating things. 2. Concepts in our thoughts come from both natural experiences and artificial experiences based on rules. Concepts are often based on prototypes that represent general characteristics rather than specific examples. 3. Both automatic, habitual thinking and controlled, effortful thinking occur, but controlled thinking tends to lead to better outcomes through analyzing biases and considering multiple perspectives.