Real-time monitoring of crystallization is shown to provide benefits leading to improved methods for process development, optimization and scale-up. This white paper reviews case studies examining many of these benefits for: - Providing process knowledge that enables real improvements in yield, throughput and profitability of production scale crystallization - Eliminating downstream bottlenecks by improving filtration/dryer performance - Accelerating the characterization of critical operating parameters for increased productivity - Enabling the design of more robust processes to assure batch-to-batch repeatability and consistent meeting of crystal specifications - Identifying undesired events in real time to help ensure product quality