1. Trends in Cyanobacteria: A contribution to systematics and biodiversity studies 2. Specialized Metabolites from Cyanobacteria and their Biological Activities 3. Cyanobacterial anti-cancer compounds in clinical use. Lessons from the dolastatins and cryptophycins 4. Anti-inflammatory activity of cyanobacteria 5. UV-protective secondary metabolites from cyanobacteria 6. Antimicrobial activity of Cyanobacteria-derived compounds 7. The role of toxins: Impact on human health and aquatic environments 8. Cyanobacterial pigments: photosynthetic function and biotechnological purposes 9. Cyanobacteria in cosmetic: a natural alternative for anti-aging ingredients 10. The nutraceutical potential of cyanobacteria