Is graphology a science? Graphology, or handwriting analysis, claims that personality characteristics such as introversion and extraversion can be inferred from the form and structure of letters, words, and sentences (introverts, for example, are said to write in smaller letters, extraverts in larger letters). Shermer puts graphology to the experimental test, trying to find out how reliable this is.

Watch the second part of this documentary in YouTube: Graphology Part 2.