Chapter 1. Introduction to neurogenetics.- Chapter 2. Neurogenetic analysis in Caenorhabditis elegans.-  Chapter 3. Regionalisation of the early nervous system.-  Chapter 4. Early neurogenesis and gliogenesis in Drosophila.- Chapter 5. Neural stem cells and brain tumour models in Drosophila.-  Chapter 6. Eye development in Drosophila: from photoreceptor specification to terminal differentiation.- Chapter 7. Neurogenetics of memory, learning and forgetting.- Chapter 8. Evolution and origins of nervous systems.-  Chapter 9. Neural stem and progenitor cells in the mammalian brain.-  Chapter 10. Models of neurodegenerative diseases.