Stem Cells in Neurotoxicology, Volume Twelve in the Advances in Neurotoxicology series, presents interesting chapters written by an international board of authors. Chapters in this new release include Brain organoids as a translational model of human developmental neurotoxicity, Self-organizing human neuronal cultures in the modeling of environmental impacts on learning and intelligence, Utilization of human stem cell/neural progenitor tests to examine neurotoxic impacts on differentiation, Characterization of neuronal and other cellular sub-types in human stem cell cortical neuron differentiations, Utility of human stem cell models to study persistent neurotoxicity, and Utility of human stem cell models to study chronic neurotoxicity.