The Lens: A Practical Guide for the Creative Photographer is a new book from photographer NK Guy.  The Lens “is a momentous handbook that demystifies optical technology, decodes arcane terminology, and provides practical tips for both amateur and professional photographers to help them make smart purchasing decisions and build the perfect lens collection.”

The Lens: A Practical Guide for the Creative Photographer retails for $44.95; however, it is currently available for $23.96 on Amazon.com.