"accumulated books" is a correct and usable phrase in written English.
It means a collection of books that have built up or been gathered over time. Example: My grandfather has accumulated books on gardening from all over the world, and his library is now a treasure trove of knowledge for any aspiring gardener.
"We are the sum of these accumulated books," he writes.
MOVING makes you face all the stuff you've accumulated: books, computers, clothing and, of course, reams and reams of financial documents.
Within half a century of its foundation circa 295 bce, the collections of the Royal Library had exceeded the space allotted to contain the accumulated books.
Closing the door on an office that had 30 years of accumulated books, clothes, manuscripts, photographs, files and furniture, and walking away from three decades of one way of life to enter a new world when I was 65 years old was a decision that happened in one quantum moment.
The venture eventually became unsustainable, and the institution's members presented the accumulated books, artefacts and pictures to Brighton Corporation, the local authority.
It took a while for me to understand why my need for the book had been so great, and then I realized, with a bit of a slap to the head, that for much of my life I've been accumulating "books of facts," single volumes as well as multivolume sets.
In any case, there is no need to accumulate books you have no intention ever of reading.
I had accumulated many books.
He kept his spreadsheet up to date for almost twenty years, and he'd accumulated 10,496 books before his death.
Claiming "I cannot live without books", Jefferson accumulated thousands of books for his library at Monticello.
As the years accumulated, Her Book became a colossal collection, bulging with added inserts, photos and notes, and Eve carried this evidence of her existence, "her pride and her penance," for more than 50 years, ever homeless, depending on the kindness of friends and strangers.
