Bla qalb, Chatterbox marret lejn ħanut tal-kotba fil-qrib u xtara What the Face Basic and Applied Studies of Spontaneous Expression Using the Facial Action Coding System (FACS) , editjat minn Ekman u Erika Rosenberg.
Chatterbox xtara ktieb li ġie editjat minn Ekman Rosenberg.