The book is fascinating. Pennebaker is a psychologist, not a linguist, who takes advantage of computer analysis of texts to study how the words we use in our writing and in our speaking can be used to predict or explain behavior and he also covers other ways that the computer analysis of texts can be used --like to figure out who wrote each of the Federalist Papers. The book is far from dull. Pennebaker gives tons of examples and talks about various experiments that he has run over the years.
Giving it not quite 4 stars.