Graphic Artists Guild handbook : pricing & ethical guidelines
Graphic Artists Guild (U.S.)
A History of Mathematical Notations: Vol. I
Florian Cajori
Opticks: or, A treatise of the reflections, refractions, inflexions ...
Newton, Isaac, 1642-1727
The origin of species
Darwin, Charles, 1809-1882
Designing the Mind: The Principles of Psychitecture
Ryan A Bush & Designing The Mind