Which packaging innovation for religious texts caused significant controversy when first introduced but is now widely accepted across many faith traditions?

In the world of religious publishing, packaging innovations have transformed how sacred texts are presented to believers. From ancient scrolls to modern digital versions, the physical presentation of religious works has evolved significantly while maintaining reverence for their content. This poll tests your knowledge about a groundbreaking packaging innovation that changed how people interact with religious texts.

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The pocket-sized Bible with ultra-thin pages (Bible paper/India paper), introduced in the 1800s
The leather-bound devotional with built-in bookmarks and gold-leaf edges, popularized in the 1700s
The illustrated scriptural comic book format, first appearing in the 1950s
The scroll-to-codex transition for religious texts, occurring gradually between 1st-4th centuries CE