Context:

Explicitly mentioned as 'his book, Titanic Lives' when discussing statistics about survival rates on the Titanic and analysis of why certain passengers lived or died. The book is described as being written 'very much as a dark comedy' and is referenced multiple times throughout the episode for various details about the disaster and its aftermath.

Context:

Mentioned as a 'recent biography' or 'very short biographical sketch' of Gordon, in which the author describes Gordon as 'a creep' in relation to his work with boys.