This document provides an overview of how nature, knowledge, and technology have been depicted in art. It discusses how art represents the natural world, animals, and fantastic creatures. It also examines how art illustrates scientific knowledge through drawings of the human body and medical illustrations. Surrealism is presented as exploring intuitive knowledge through dream imagery. The document then looks at how art depicts landscapes, gardens, and earthworks. Finally, it analyzes how art portrays technological developments and their impact through the works of various artists.