The Pressure of Light by John Henry Poynting explores the fascinating properties of light and its interaction with matter. Through experiments measuring the force exerted by a beam of light and the absorption of momentum by light-absorbing gases the book provides concrete evidence of light's ability to carry momentum and exert pressure on surfaces. The author delves into scientific calculations and theories related to the pressure of light discussing its impact on the solar system and celestial bodies. Part of the Romance of Science series the book aims to present modern scientific generalizations in an engaging and educational manner making it accessible to general readers and young audiences.