Lincoln Kinnear Barnett (1909–1979) was an editor and author, most notably at Life Magazine for many years.
Lincoln Barnett wrote a number of books, including "The Universe and Doctor Einstein", "The World We Live In", and "The Treasure of Our Tongue". 
The Universe and Doctor Einstein is a layman's introduction to the theory of relativity. It includes a foreword by Einstein, and has been reprinted several times. His work popularizing science subjects included consulting work on the film Journey to the Center of the Earth.