J. K. Rowling, who wrote the Harry Potter books,
is widely quoted about the children's fantasy books that inspired her and which she admires;

The Little White Horse, by Elizabeth Goudge, is one of them.
I am getting my branch library to borrow a copy for me,
as I have yet to read it.

The Little White Horse appears to be children's fantasy
in the sense of C.S. Lewis's Narnia books.
Multiple editions have kept it in print,
and more than once the book has been
adapted for television.