This document provides an overview of semiotic analysis and key concepts in semiotics. It discusses Ferdinand de Saussure's concept of the sign as consisting of a signifier and signified. It also explains Charles Sanders Peirce's three types of signs: icons, which resemble what they signify; indexes, which are physically connected to what they signify; and symbols, which are socially constructed representations. The document uses several artworks as examples to illustrate how semiotic analysis can help determine different possible meanings that signs and images may communicate depending on their context.