Microalgae are a diverse set of eukaryotic photosynthetic organisms with great potential for being used to produce various high-value molecules. Using synthetic biology to manipulate and control the metabolic processes of microalgae, scientists hope to find economical and sustainable alternatives for commercial production of high value biochemicals and other metabolites for diverse applications. Highlighting the immense potential of microalgae as a renewable and sustainable source of commercially important, high-value biomolecules, this book covers the recent advances in the resources, tools, and techniques used for genetic engineering of microalgae. Also discussed are the legislative challenges associated with genetically engineered microalgae, their derived products and their uses, as well as socio-economic and environmental acceptance. Written to be accessible to a wide audience, this book will be a useful reference to students and researchers from both academia and industry, as well as policy makers, for understanding the current status, trends and future possibilities of using microalgae for biotechnological applications.