<ul data-eligibleForWebStory="true">Netflix has evolved from DVDs to streaming, focusing on personalization for user retention.The streaming giant masters personalization with 2 billion annual viewing hours, driven by recommendations and UI improvements.Netflix's personalization engine boosts engagement, with 80% of streams initiated from suggested titles.The 2024 'Netflix Mood Match' campaign sparked viral growth and a 5% subscriber increase through data-driven features.Netflix emphasizes personalization to turn users into advocates, balancing AI with human appeal.A/B testing culture at Netflix, supported by AI, fine-tunes user experiences through thousands of experiments annually.Netflix prioritizes user-centric A/B testing, focusing on delight and user value metrics rather than just clicks.A six-step framework guide for PMs to design data-driven personalization akin to Netflix.Challenges of mishandled personalization can undermine user choice despite AI-driven improvements.Netflix utilizes social trends like the 'Mood Match' campaign to fuel personalization and organic growth.The success of Netflix showcases the power of A/B testing and AI in creating engaging experiences.PMs can learn from Netflix's personalization strategies to develop compelling products.Netflix encourages audience engagement by asking for feedback on favorite features.The Product Brief offers insights on building tech products effectively and purposefully.