Famous book trilogies:
Lord of the Rings: JRR Tolkien, the author of lord of the rings has written three sequence books named "The Fellowship of the Ring", "The Two Towers" and "The Return of the King" The Lord of the Rings" is not only a tale of enthralling adventures and mythical beings, but it also touches upon some questions of philosophy and morality. The book became extremely popular and was turned into a film by Peter Jackson. The film was a great financial success, the sixth highest grossing film series of all time.
Twilight series: Everyone knows about this young vampire love story trilogy. Stephenie Meyer is one of the popular high earning author. The first novel Twilight was released in 2005 and the love story of vampire and a human being became the favourite among readers especially youngsters. The Twilight, New Moon, Eclipse and Breaking Dawn. However, it is not a trilogy, Twilight series is considered one of the popular book trilogies.
Griffin and Sabin Trilogy: Griffin and Sabine, Sabine's Notebook and The Golden Mean, were published in 1991, 92 and 93 respectively. The trilogy series, written by Nick Bantock, is one of the best selling and popular trilogies. every story is told through a series of letters and postcards between the main characters, Griffin Moss and Sabine Strohem. The trilogy series has been followed up by another trilogy, Morning Star Trilogy.
New York Trilogy: Written by Paul Auster, New York trilogy is a detective fiction. The city of glass, ghost and the locked room are three books under this trilogy series. This is one of the best book trilogies.
These are few high paid and popular book trilogies.