They represent one esthetic advance in papermaking since the earliest days in that they are not all dead white.
"The Booklover and His Books"
Harry Lyman Koopman
Still, in spite of this difficulty, I feel sure that I can give the French paper trade the privilege of our literature; papermaking will be for France what coal and iron and coarse potter's clay are for England-a monopoly.
"Eve and David"
Honore de Balzac
The best books to consult on the subject are Herring's Paper and papermaking and Sotheby's Principia Typographica, 1858, the latter of which is a masterpiece of learning and constructive skill.
"Book Collecting A Guide for Amateurs"
John Herbert Slater