That's because, just two years after Amazon's Kindle kicked open the e-book category, consumers' attention span for yet another electronic reader launch looks to have waned.
In the picture book category, Rebecca Cobb - who has illustrated books by The Gruffalo creator, Julia Donaldson - has been shortlisted for Lunchtime, while Chris Haughton features for a second year running with Oh No George, about a dog who tries very hard to be well-behaved.
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"After the hyper growth in the e-book market over the last few years, consumers have settled into their book formats of choice, and while e-books will continue to drive growth in the book category in the future, physical book sales will have a longer tail (or longer life expectancy) than previously anticipated, " he said in a call with investors.
The publishers of the Guinness Book of Records eliminated the youngest pilot category from its book several years ago because they did not want to encourage unsafe flights.
The iPhone remains what the book publishing world calls a category killer.
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The problem of defining the category of beers covered by this book was not easily solved.
The film version of Roald Dahl's famous book notched up 30, 000 online votes in the only category chosen by children.
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The winner of each category will be announced on 6 January and the book of the year on 25 January.
Each category winner will go on to complete for the overall children's book of the year.
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Cookbooks are currently something of a bright spot in book sales, which declined overall by about 5% in 2008, while the cookbook category declined by only between 1% and 2%, according to Simba Information, a media research company in Stamford, Conn.
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