Book excerpt: Plant-based edible oils rank second only to carbohydrates as an important source of calories in the human diet and are primarily derived from edible oilseeds. These oilseeds are rich in essential fatty acids, high-quality protein, fiber, vitamins, and minerals. They also contain important phytochemicals including sterols, polyphenols, tocopherols, and carotenoids, making the oils they produce critical for metabolic functions, human health benefits, and addressing malnutrition and undernutrition. The global cultivation of edible oilseed crops has seen a significant rise. However, various biotic and abiotic stresses, poor agronomic practices, and extreme climate conditions, either in isolation or combination, negatively affect plant health, thus limiting both the quantity and quality of oilseed productivity. Edible Oilseeds Research - Updates and Prospects provides a comprehensive exploration of the origins, botanical characteristics, challenges, and recent advancements associated with major herbaceous edible oilseed-bearing plants. It offers historical insights into edible oilseeds, highlights recent advancements and future directions, and provides an overview of the important bioactive dietary compounds (including tocopherols and tocotrienols) present in common oilseeds. This volume also discusses key approaches to improving the health and productivity of oil palm and presents critical insights into the applications and achievements of CRISPR-Cas9 technology in oilseed research. This book serves as a valuable resource for plant biologists engaged in teaching and research, offering detailed knowledge on various aspects of important edible oilseeds.