This incredibly dense read would not have been finished had it not been on a required reading list for my class on monsters in Medieval literature. Each chapter required intense concentration in order to understand the complexities of Cohen's observations in relation to the psychology behind beasts and the society who created them.
Cohen goes into great detail on the pre-history of England, how colonization fed the imagination of many, and as a result tales of giants came about in order to illustrate the invasive forces unleashed upon the British Isles. Gogmagog and his herd of kin are examples of this prodigious influence; ultimately the giants are killed, allowing the Christian man to rise above the militaristic enemy, offering a symbol of hope and representing the new England that would rise from the ashes that is subjugation (and the fact that England did in fact recover to become a powerful country is indisputable).
Perhaps the least convincing elements of Cohen's collection of essays was his inclusion of Freudian psychology, in particular his focus on phallic imagery as a means of expressing masculine dominance in England's pre-history, but drawing penises is hardly an antiquated way to show how territorial men can be-- it's rather a familiar habit of men even now. In short, there were many fascinating points although some seemingly based on conjecture and some questionable psychoanalytic psychology.