Which innovative marketing campaign did Zondervan Publishing use in 2011 that revolutionized how religious texts were promoted to younger demographics?

Religious texts and philosophical works represent some of the oldest and most enduring 'products' in human history. The marketing and distribution of these texts has evolved dramatically over centuries, from hand-copied manuscripts to modern digital platforms. This trivia question explores an interesting aspect of how religious publishing houses have adapted their marketing strategies in the digital age.

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The 'Bible Emoji' campaign that translated scripture into emoji symbols for social media sharing
The 'Digital Bible Experience' with interactive apps featuring celebrity narration by James Earl Jones and other actors
The 'Scripture Selfie' campaign encouraging users to photograph themselves with favorite verses
The 'Holy Subscription' model offering monthly boxes of religious books and devotional items