Chapter 1. Biotechnological approaches to enhance algae biofuel production -- Chapter 2. The use of omics technologies, random mutagenesis, and genetic transformation techniques to improve algae for biodiesel industry -- Chapter 3. Algal butanol production: recent developments -- Chapter 4. Algal synthesis of gold nanoparticles: applications in bioenergy -- Chapter 5. Challenges assessment in economic Algal biofuel Production -- Chapter 6. Influence of culture conditions on the microalgae biomass and lipid accumulation -- Chapter 7. Advanced genetic approaches towards custom design microalgae for fourth-generation biofuels -- Chapter 8. Algal biofuel production from municipal waste waters -- Chapter 9. Positive influence and future perspective of marine alga on biofuel production -- Chapter 10. Algae bacterial mixed culture for waste to wealth conversation: a case study.