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The big book of experimentation

Welcome to Optimizely’s Big Book of Experimentation — featuring 45+ case studies on how top brands turn testing into millions in revenue. Discover how businesses use experimentation, warehouse-native analytics, and AI to optimize engagement, personalize digital experiences, and boost customer satisfaction.

  • Proven strategies to boost conversion rates and deepen customer engagement
  • Practical examples to accelerate innovation and make smarter product decisions
  • Inspiring stories of AI and experimentation mastery to drive measurable growth
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45+ real-world experimentation case studies

IBM
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Sky - Best Digital Team - Customer Approach at DXA2019
Discovery
Salesforce
IBM
mailchimp
Sky - Best Digital Team - Customer Approach at DXA2019
Discovery
Salesforce