The Thirteen Problems

Identifiers
MPN	HarperCollins Publishers 45950565
ISBN	HarperCollins Publishers 9780008196523
Dimensions / Weight
Key Features
Category 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.	Crime & mystery
Format 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").	Paperback / softback
ISBN 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.	9780008196523
Pages The total count of individual pages contained in a book or printed publication. It represents the number of physical sheets that make up the product, regardless of layout or formatting.	256 pages
Publisher The name of the entity that publishes or distributes the product, such as a book, magazine, or other media item.	HarperCollins Publishers

HarperCollins Publishers is a publishing company that was founded in 1817. It is one of the largest publishing companies in the world and is headquartered in New York City. HarperCollins publishes books for adults and children in a variety of genres, including fiction, non-fiction, biography, autobiography, business, cooking, children's books, and young adult fiction.