The Primary Sources series is the winner of the 2015 Academics´ Choice Awards for the 2015 Smart Book Award in recognition of mind-building excellence. The Environmental & Conservation Issues Primary Sources is a pack of 20 primary source documents that are relevant to history of American conservation The Conservation & environmental Issues Primary Sources includes historical documents, maps, photographs, political cartoons, lithographs, diagrams, letters in a mix of color and black-and-white, and sepia finishes. Each primary resource is printed on sturdy 8.5" x 11" cardstock.