Table of Contents

Part I. Language and Structure: 1. Naming of parts; 2. Classifying structures; 3. Structures that look alike; 4. Automorphisms; 5. Interpretations; Part II. Piecing Together a Structure: 6. The first order case; 7. The countable case; 8. The existential case; 9. The Horn case; Part III. Consequences of Compactness: 10. Saturation; 11. Combinatorial; 12. Expansions and categoricity; Examples; Bibliography; Index.