vs 

QUICK ANSWER
"His books" is a phrase which is often translated as "sus libros", and "her books" is a phrase which is also often translated as "sus libros". Learn more about the difference between "his books" and "her books" below.
his books(
hihz
 
books
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. sus libros
Arthur never lends his books to anyone, not even his friends.Arthur nunca le presta sus libros a nadie, ni siquiera a sus amigos.
Copyright © 2025 Dictionary Media Group, Inc.
her books(
huhr
 
books
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. sus libros
Imelda left her books at home.Imelda dejó sus libros en casa.
Copyright © 2025 Dictionary Media Group, Inc.