Manifesto

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 percentage of alcohol present in an alcoholic beverage, expressed as a proportion of the total liquid volume. It indicates how strong the drink is and helps consumers compare products or comply with legal limits.

The nation in which a book or other published work was first released to the public. It indicates the country where the publication event took place, regardless of the author’s nationality or the publisher’s location.

The physical covering or binding style of a product, such as paperback, hardback, softcover, or other variants. It indicates how the item is wrapped or protected and can include simple text descriptors like "Yes" for items that come with an additional protective cover.

The pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates how many pixels are used to render the visual content and is commonly used for monitors, TVs, smartphones, cameras, and digital images.

Indicates the physical or digital format in which a product is presented, such as "Hardback", "Paperback", "DVD", "Blu‑ray", "Vinyl", or other media types. The value may contain multiple comma‑separated items to represent combined attributes (e.g., "Hardback, Illustrated").

The name of the entity that publishes or distributes the product. It typically refers to a publishing house, imprint, or brand responsible for producing and releasing the item.

A unique identifier assigned to books and other printed publications, typically consisting of 10 or 13 digits. It may include hyphens for readability but is treated as a string value. The ISBN uniquely identifies a specific edition of a title across the publishing industry.

A list of the natural languages in which a product is available or supported.

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 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.