When Jane first meets Kim in the beach bar she is reading "The Daughter of Time." by Josephine Tey. The main character in the book is a detective who prides himself on being able to read people much the way Jane does.
This is the first episode in the series whose title does not reference the color red, reflecting the fact that Red John is dead.
The name of the island where Jane resides is never mentioned. When Jane leaves the island, he boards a bus whose side has a telephone number with the country code 58, which is the country code for Venezuela. Venezuela has an extradition treaty with the US but has historically refused extradition requests, making its islands a safe harbor for Jane, who is wanted by the FBI for killing Red John.
This episode is directed by the series lead Simon Baker.
The book that Kim Fischer reads is Josephine Tey's "Daughter of Time." In the book a hospitalized detective fights the hours of boredom by investigating the truth of the accusations of murder and betrayal against Richard III. He discovers the evidence tends to exonerate the long dead and too long maligned King. The book's title is from an old proverb stating "Truth is the daughter of time," meaning that the truth of something can never be concealed forever, and all lies and prevarications will be dispelled eventually. This is an obvious allusion to the false accusations against Patrick Jane and his exoneration.