Want your material to evoke calmness and tranquility? San serif fonts do the job. Such as Gotham Book, a fav of ours, it’s simplistic, yet powerful. 

Gotham is a family of widely used geometric sans-serif digital typefaces designed by American type designer Tobias Frere-Jones in 2000. Gotham’s letterforms are inspired by a form of architectural signage that achieved popularity in the mid-twentieth century, and are especially popular throughout New York City.