Book excerpt: Using a fun and accessible graphic novel format, Perspective in Action features 33 easy-to-follow demonstrations to teach artists the major discoveries in perspective. Perspective is a fundamental element in the development of art and for understanding spatial relationships, but it is an underserved topic in the world of art instruction. Author and artist David Chelsea takes readers through the major perspective-related developments in history, teaching them how to re-create these same experiments by leading artists in all fields (including drawing, painting, and sculpture). Covering a wide-range of mediums (pen and ink, paint, chalk, digital art, woodwork, and more), Perspective in Action gives readers a more hands-on approach to perspective, as opposed to the usual theoretical presentations found in other books.