The numbers for phone book sales and other book sales have been slow to rise in recent years.
However, the industry is still seeing some real growth and is now forecasting an increase of nearly 1,000 per cent in the first quarter of 2019, according to research firm Kantar Worldpanel ComTech.
This is in stark contrast to the growth rate seen in 2017, when sales fell by over 1,300 per cent.
The research firm says this is due to a “deteriorating consumer preference” and a “lack of demand”.
The trend has been in the news for the past week, with Amazon and Apple reportedly pushing hard to boost their own phone book offerings.
Amazon announced a new line of books and mobile apps in January that would bring a full range of Kindle and iPad e-readers to its Kindle Fire line of tablets.
Apple also announced plans to expand its mobile apps, including one for its Watch, iPhone and iPad, as well as a “new iPad app store” and the Apple TV app.
According to Kantar, the total amount of digital book sales in the United States in 2017 was $1.4 trillion.
While sales of books have been rising since the early 2000s, the trend is still slowing down, as technology is making it easier for consumers to purchase books online, the research firm said.
Kantar’s chief economist, David Haggerty, says the trend in the industry has been a “disappointing” one.
“In the past few years, book-buying has largely remained static.
But now that the internet has moved into the home, there has been an increase in book buying, especially among millennials,” he said.