Insight Text Guide for Wuthering Heights by Emily Bronte. Insight sources the most authoritative and best qualified writers for each text guide whether it be a novel, play, non-fiction, film or poetry. Their writers are specialists in the relevant area of literature or genre of film. They all have at least Masters level qualification in Literature or Film, but more often have completed a PhD in Literature or Film. In addition, they are clear and accessible writers of considerable experience and have all been or are currently teaching.