Summary: The book titled "The Outline of Art," edited by Sir William Orpen and revised by Horace Shipp, extends the range of art history to include prehistoric cave paintings and bone sculptures, covering the art of the world. The revised edition incorporates new material from archaeologists and scholars, enhancing the understanding of different artistic periods and their significance. It acknowledges the importance of European painting and sculpture but emphasizes the global and timeless nature of art, highlighting the art of China over five thousand years and its achievement in absolute perfection. The book grapples with the challenge of balancing the relative values of diverse art forms and artists, reflecting the personal predilections of the editors. From the roots of art in ancient civilizations to the Renaissance in Italy, the development of art is traced through the contributions of visionary artists like Botticelli, Giotto, and Donatello, who ushered in a new era of realism and innovation, setting the stage for modern painting.