1. Introduction to the Lanthanides 2. Spectroscopic and Magnetic Properties of the Lanthanides 3. Lanthanide Metals, Crystals and Compounds 4. Organometallic Compounds of the Lanthanides 5. Coordination Compounds of the Lanthanides 6. Lanthanide Based Molecular Magnetic Materials 7. Lanthanide Based Luminescent Materials 8. Specific Applications of the Lanthanides