Which packaging innovation in the publishing industry is credited with making poetry more accessible to mainstream audiences in the 2010s?

In the publishing world, innovative packaging can transform a book's market appeal and reader experience. From unique cover designs to special edition formats, the packaging of literature has evolved dramatically over the years, influencing how readers discover and interact with books. This trivia question challenges you to identify a groundbreaking packaging innovation that revolutionized a specific segment of the book industry.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Instagram-sized poetry collections with minimalist covers and sparse page layouts
Hardcover books with built-in bookmarks and gold-embossed chapter headings
Novels with companion smartphone apps that provide enhanced content
Limited edition box sets with author-signed prints and memorabilia