Which groundbreaking market research technique revolutionized the publishing industry by providing publishers with real-time data on how readers interact with e-books?

The publishing industry has transformed dramatically in recent decades with digital technology enabling sophisticated market research approaches. Publishers now use data analytics to make informed decisions about acquisitions, marketing strategies, and audience targeting. This poll tests your knowledge about a pivotal market research innovation that changed how publishers understand reader preferences and behaviors in the digital age.

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Reading analytics (tracking page completion rates, reading speed, highlighting patterns, and abandonment points)
Sentiment analysis of social media book discussions
Focus group video analysis using AI facial recognition
Neurological response tracking during book cover exposure