Chapter 1. The Concept of Cognitive Social Media and Cognitive Literary Studies (Valiur Rahaman).-Chapter 2. Big Data Analytics for Market Prediction via Consumer Insight (Hemant Kumar Soni).- Chapter 3. Deconstructive Big Data Analytics: A Literary Texts Analysis through Atlas.ti Software (Valiur Rahaman).- Chapter 4. Study of Big Data Analytics Tool: Apache Spark (GL Prajapati).- Chapter 5. Analyzing Women Health-related Quality of Life Using Sentiment Analysis on Social Media.- Chapter 6. Understanding Literary Diaspora for Digital Diasporas as Cognitive Social Media: BDA for Peace and Harmony (Ajay Kumar Chaubey).- Chapter 7. Security and Privacy Challenges for Big Data on Social Media (Vineet Raj Singh Kushwah).- Chapter 8. Social Media: The Dark Horse of Market in Consumer Decision Journey (Sakshi Agarwal).