Invalid input: img/books/1117_front_thumb.jpg. Please provide a comma-separated list of id values, or a single id value. An id value is a positive whole number.
"Just because you are unique does not mean you are useful."
Invalid input: img/books/1117_front_thumb.jpg. Please provide a comma-separated list of id values, or a single id value. An id value is a positive whole number.