og:type = book

• Subject: The Adventures of Sherlock Holmes — Wikipedia
• og:type: book
• og:image: mixed array — public placeholder cover images
• book:author: Arthur Conan Doyle (Wikipedia URL)
• book:isbn: 978-3-16-148410-0
• book:release_date: 1892-10-14
• book:tag: [Fiction, Detective, Mystery, Short stories]