Top three notebooks pictured.
From Field Notes: The covers are printed on a variety of colored 100-lb. cover stocks from the French Paper Company of Niles, Michigan, using a custom, five-color process that started with under-printing white ink. The illustrative styles, the printing process, and the copper staples recall the heritage, and archival promotional materials and publications, of the National Park System. Grand Canyon National Park by DKNG Studios, Joshua Tree Nat’l Park by The Little Friends of Printmaking, Mount Rainier Nat’l Park by Glenn Thomas.
Words from Field Notes website.