"Nectaries and Nectar" is a comprehensive academic book that explores the role of nectar as a crucial reward for pollinating animals. It offers a modern and interdisciplinary perspective on the topic, stimulated by recent advances in ecological and molecular sciences. The book covers a wide range of subjects, including historical aspects, the structure and ultrastructure of nectaries, and their relationship to plant systematics. Additionally, it addresses the dynamics of nectar secretion, the chemical composition of nectar, and the molecular biological aspects of defense proteins. Other focal points include adaptations to insect and vertebrate nectar consumers, as well as the impacts on pollination ecology. The book concludes with extensive studies on nectar resources at the community level, providing deep insights into the complex interactions between plants and their pollinators.