DEV1AT3

The individual or group credited with creating the main content of a product, such as a book, film, or other creative work. The value is a free‑text string representing the name(s) of the primary creator.

The age range for which a product is intended or recommended, expressed as a minimum and maximum age in years.

The calendar date on which the product was first made available to the public or released for sale. It is expressed as a full year, month, and day (YYYY-MM-DD) and can be used to filter or sort items by release period.

The name of the publishing house or imprint that released the product, such as a book or audio edition.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.