Amazon has Kurt Vonnegut's The Sirens of Titan: A Novel (eBook, Kindle) on sale for $1.99 downloaded. Other books on sale todaay include: 

• David and Goliath: Underdogs, Misfits, and the Art of Battling Giants by Malcolm Gladwell for $2.99
• Prince Lestat and the Realms of Atlantis: The Vampire Chronicles by Anne Rice for $2.99
• Sh*t My Dad Says by Justin Halpern for $1.99 
• Food Rules: An Eater's Manual by Michael Pollan for $2.99
• The Joe Hill 4-Book Bundle for $1.99