Meta Box

$books = mb_get_block_field( 'taxonomy_books');
$queryBooks = new WP_query(array(
    'posts_per_page' => -1,
    'post_type' => 'books',
    'tax_query' => array(
        array (
            'taxonomy' => 'book',
            'terms'    => $books->taxonomy_books,
            'field'    => 'taxonomy_books',
        ) ),
));

This is what my code would look like.

But the query is not what I expected.

As you can see in the image, the query brings me the values of all the posts that have a tag checked, but not the specific tag. But also, when marking the field in the block, it brings me the value of the taxonomy itself.