From The Unofficial DisneyWiki

Tenggren's art illustrated the press book
No words can describe its beauty, its charm, its glow, its tremendous appeal to the heart of man! ... Nothing like it has ever been seen before! ... It is so utterly different from everything the screen has ever known - so refreshing, so wonderful, so deeply thrilling ... that every man, woman and child in the world owes it to himself not to permit anything to keep him from seeing it!
THE MOST DARING ADVENTURE IN SCREEN ENTERTAINMENT SINCE THE BIRTH OF THE MOTION PICTURE!
—Press book for Snow White and the Seven Dwarfs^[1]

At the time of its release, Snow White and the Seven Dwarfs was the subject of an enourmous amount of publicity. Even negative thoughts surrounding the film, doubting its success, served to increase awareness. A press book was released, illustrated with art by Gustaf Tenggren. Walt Disney also participated in a radio interview with Cecil B. Demille a day before the film's premiere in 1937, and short films touring the Disney studio were made. Publicity for the film is periodically still created, intended to promote the various rereleases of the film. In trailers and blurbs for the film, Snow White is often referred to as "the one that started it all".