Deep within the warehouse capital of the country lies a literature lover's treasure trove.
Hidden from view, among the "mega-sheds" and supply chain businesses of Northamptonshire, there is no hint of the historical wonders inside.
But this non-descript warehouse on the outskirts of Rushden is home to the Penguin Random House UK Library and Archive.
It features 1.5 million books by some of the biggest names in literature, including Agatha Christie, Ernest Hemingway, Roald Dahl and Jilly Cooper, as well as many other documents relating to the world-famous publisher, now celebrating its 90th birthday.
"It's pretty overwhelming. I love it, though," says Nicki Carter, senior library and archive assistant, who joined the collection seven years ago.
"I've always been an avid reader. I moved to this area in my early teens and I'd always driven past this building and wondered what was inside".
Her dream to work in publishing came true years later when she left university and decided to check the publisher's website.
"There happened to be a job going and considering there are only five roles here, it was very fortuitous timing," she says. Her favourite part of the archive? It's the Terry Pratchett collection, devoted to the work of the bestselling author of the Discworld series.
"I love Terry Pratchett," she says.
"We've got the original cover designs. And then we have the more modern ones where we've come out with these beautiful clothbound classics.
"So, if you're a fan, this is the place to be; this is the place to spend your time."
