Red Winter Review
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$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'book', 'terms' => 'a-red-winter-in-the-west', 'field' => 'slug', 'operator' => 'AND', ), array( 'taxonomy' => 'post_tag', 'terms' => 'review', 'field' => 'slug', ), );