Firearm optics books cover rifle scopes, binoculars, range-finders and more.
Optics For The Hunter by John Barness (1999) explains everything the average hunter should know about buying and using modern optics.
Optics Digest: Scopes, Binoculars, Range Finders And Spotting Scopes by Clair Rees (2004) contains exact listings, in table format for ease-of-comparison shopping, for nearly every scope (rifle, shotgun, pistol), binocular, spotting scope, red-dot sight and laser rangefinder.
Old Gunsights And Rifle Scopes: Identification And Price Guide by Nick Stroebel (2008) is the first and only collecting and price guide for scopes and sights. Whether you are a shooting buff, collector, historian, antique dealer or military aficionado, this book helps you identify, research and determine market pricing for old gunsights and rifle scopes.