The document describes heuristic search techniques used in artificial intelligence and includes 38 figures illustrating concepts like: - State space representations for games like tic-tac-toe. - Heuristics applied to game states to evaluate positions. - The process of heuristic search to find solutions in state spaces. - Examples of heuristic search applied to problems like the 8-puzzle and nim. - How techniques like alpha-beta pruning optimize minimax search.