1. Why Are In-silico Approaches Necessary for Macromolecular Chemistry? 2. Theoretical tools for In-silico Macromolecular Chemistry 3. Macromolecular Chemistry: An Introduction 4. In-silico Approaches for Carbohydrates 5. In-silico Approaches for Lipids 6. In-silico Approaches for Proteins 7. In-silico Approaches for Nucleic acids 8. Contribution of Computational Genomics Research to the Real World 9. In-silico Approaches for Olefinic polymers 10. In-silico Approaches for Halopolymers 11. In-silico Approaches for Elastomers 12. In-silico Approaches for Aerogel 13. In-silico Approaches for Xenobiotic Polymers and their Degradation Mechanism 14. In-silico Approaches for Polymeric Composites 15. In-silico studies of Macromolecules as Sensors 16. Are Computational Approaches Critically Important for Solving Real-World Problems?