In anticipation of Battlefield 4’s launch on October 29, Electronic Arts and DICE are launching a number of Battlefield brand products. Key items in the lineup include a Battlefield 4 novel written by Peter Grimsdale, a Titan art book, and Battlefield 4 gaming peripherals.
Peter Grimsdale is a British television producer and novelist, known for the books Perfect Night and Just Watch Me. His novel, Battlefield 4, provides backstory for the upcoming game, presumably featuring the same protagonists.
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https://www.gameinformer.com/b/news/archive/2013/07/16/ea-announces-line-of-official-battlefield-4-merchandise.aspx