Speaking to Hitchcock's visual storytelling ability, Duguid writes:
"The limitations of the silent form led filmmakers to develop a visual language to enable them to say with images what they could not using dialogue or sound. By the time of the arrival of sound in 1927 (later in Europe) this filmmaking language had become so sophisticated that sound was felt by some to be almost unnecessary. Others - including Hitchcock - felt that the arrival of sound meant that something was lost to cinema. Directors were no longer forced to tell a story using images alone, and cinema's distinctively visual storytelling suffered as a result.
Throughout his career, Hitchcock continued to believe in cinema as a visual medium... when we think of Hitchcock we tend to remember images - the shower scene in Psycho (1960) or the handcuffed Robert Donat and Madelaine Carroll in The 39 Steps (1935) - rather than lines of dialogue."Unfortunately those of us outside the U.K. can't view the film clips included with the article. (Damn that revolutionary war anyway!)
In any case, a number of Hitchcock's early British films are available on Google Video. Here's his great The 39 Steps. (Let the clip play for a while. For some reason there is about 30 seconds of black leader before the film begins.)