This document provides an overview of artificial intelligence (AI). It defines intelligence and AI, explaining that AI aims to make computers intelligent like humans. It describes how AI works using artificial neurons and logic. Neural networks are composed of interconnected artificial neurons that mimic biological neurons. The document also discusses applications of expert systems and machine learning. It compares human and artificial intelligence, noting strengths of each. In the end, it argues that AI is humanity's attempt to build models of ourselves and should not be feared.