Complex sentence: The first four books in particular focus on Telemachus' journeys in search of news about his father, who has been away at war; they are, therefore, traditionally accorded the collective title the "Telemachy".
Split into simpler sentences: The first four books in particular focus on Telemachus' journeys in search of news about his father, who has been away at war. Therefore, they are traditionally accorded the collective title the "Telemachy".