hiː tɹˈeɪsᵻz ðoʊz kˈæɹɪktɚz hˌuː ɐpˈɪɹ ɪn mˈoːɹ ðɐn wˈʌn plˈeɪ, ænd pɹəvˈaɪdz mˈæps tʊ ɛksplˈeɪn kˈiː dʒˌɪəɡɹˈæfɪkəl ˈɛlɪmənts.
He traces those characters who appear in more than one play, and provides maps to explain key geographical elements.