Query posts using custom taxonomy and selected terms
You’re using a deprecated method of querying by taxonomy. Read the Codex and use tax_query: $args=array( ‘post_type’ => ‘book’, ‘post_status’ => ‘publish’, ‘posts_per_page’ => -1, ‘caller_get_posts’=> 1, ‘tax_query’ => array( array( ‘taxonomy’ => ‘facts’, ‘field’ => ‘slug’, ‘terms’ => ‘information’ ) ) ); FYI, caller_get_posts is also deprecated.