What are the motifs in HITCHCOCK by Helen G. Scott?

Observation was always a strong point for Hitchcock, ever since he was a child. The director freely admits he was a loner as a small boy and cannot remember ever having playmates. Instead, the boy observed his surroundings and the people in his life. This habit became integral to Hitchcock's film work and allowed him to focus on the minute details that make a character or a scene memorable.