This document discusses the classification and types of joints in the human body. It describes three main types of joints: non-movable joints which allow no movement; slightly movable joints which allow some movement; and freely movable or synovial joints which allow a large range of movement. Synovial joints are further classified based on their shape and movement capabilities. The document also outlines the three basic types of movement that can occur at synovial joints: gliding, angular movement, and rotation.