uh... they have a lot of pages in them
they are full of lots of words, and words are quite heavy
depends on how heavy books r and how heavy, big, or small books r
The box of books was heavy.
A heavy book would be called a tome. These books are almost always very large and profound books to reads.
tomes
I had to carry many heavy books. Would you carry my books. If you carry my books, I won't have to carry them.
The word "so" is an adverb in that sentence. It's modifying the adjective "heavy".
The girls books were so heavy it encumbered her.
Books.
They break by heavy items and sharp and like water........
You might choose a high-density fiberboard (HDF) or medium-density fiberboard (MDF) for a long shelf for heavy books. These boards are known for their stability and strength, making them suitable for supporting the weight of heavy items like books. Additionally, MDF and HDF are typically more affordable than solid wood options.
Laguna heavy duty book cases are designed to not bow under the weight of books.
Because they are carrying heavy text books