Chapter. 1. Recent advancements in municipal wastewater as source of biofuels from algae -- Chapter. 2. Recent trends for production of biofuels using algal biomass -- Chapter. 3. Microbial mats and its significance in biofuel production -- Chapter. 4. Algal biohydrogen production: opportunities and challenges -- Chapter. 5. Using Algae as a Renewable Source in the Production of Biodiesel -- Chapter. 6. Various applications to macroalgal and microalgal biomasses for biohydrogen and biomethane production -- Chapter. 7. Algal biofuels: clean energy to combat the climate change -- Chapter. 8. Thermo-kinetic study of Arthrospira platensis microalgae pyrolysis: Evaluation of kinetic and thermodynamics parameters -- Chapter. 9. Growth of Chlorella minutissima microalgae from fruit waste extract for biodiesel production -- Chapter. 10. Microalgae: A way towards sustainable development of a society.