Chapter 1: Bioprocessing and analytical development for virus-based therapeutics -- Chapter 2: Viral Vector Upstream Processing and Clarification -- Chapter 3: Upstream processing of viral therapeutics: From host cell expansion to virus production -- Chapter 4: Leveraging virus biology and host genetic conflicts for cell line development and engineering for virus-based therapeutics -- Chapter 5: Overview of Current Downstream Processing for Modern Viral Vectors -- Chapter 6: Filtration Principles and Techniques for Bioprocessing of Viral Vector-Based Therapeutics -- Chapter 7: Chromatographic purification of viruses: State of the art and current trends -- Chapter 8: Purifying Viral Vectors - A Review of Chromatography Solutions -- Chapter 9: Particle analytics - Comparative approaches for analysis of viral vectors -- Chapter 10: Phase-Appropriate Potency Assay Development for AAV-based Gene Therapy Products -- Chapter 11: Quantification of virus infectivity - the key assay for the development ofviral therapeutics -- Chapter 12: Product-related impurities in therapeutic virus bioprocessing -- Chapter 13: Process Analytical Technologies (PAT) and Quality by Design (QbD) for bioprocessing of virus-based therapeutics -- Chapter 14: Methods and practical considerations in imaging viral therapeutics -- Chapter 15: Application of NMR Spectroscopy in Viral Assembly Characterization -- Chapter 16: Improved Production Strategies for Oncolytic Measles Viruses as a Therapeutic Cancer Treatment -- Chapter 17: Recent Advancements and Challenges in Recombinant Expression for Commercial Production of Virus Like Particles (VLPs) -- Chapter 18: Oncolytic viruses and viral gene therapy vectors: Principles of safety.