Elizabeth Rubio 
Understanding and Using Visible Light [PDF ebook] 

Every day, we navigate the world using our sight. This is thanks to visible light, but what exactly is visible light, and how is it different from other forms of light? This book explores everything about visible light, from its discovery to its behavior as both a particle and a wave to its many uses, including in art, science, and communication. Readers discover how visible light is vital not only to humans and other animals with sight, but to all life on Earth.