1. An Invitation to Neurobiology. 2. Signaling within Neurons. 3. Signaling across Synapses. 4. Vision. 5. Wiring the Visual System. 6. Olfaction, Taste, Audition, and Somatosensation. 7. Constructing the Nervous System. 8. Motor Systems. 9. Regulatory Systems. 10. Sexual Behavior. 11. Memory, Learning, and Synaptic Plasticity. 12. Brain Disorders. 13. Evolution of the Nervous System. 14. Ways of Exploring.