This book provides an introduction to the science and technology of seeds. It deals with various aspects of seed such as development, production, certification, seed testing and evaluation, storage and packing and marketing. It examines the interconnection of plant breeding and seed technology and also has chapters of topical interests such as the impact of climate change on seed production. Keeping in mind the advancement in the use of biotechnological methods in seed testing this book incorporates some of these techniques for genetic purity testing. It exposes the readers to some of the state of art and future trends in seed science. This book is intended for both undergraduate and graduate students of Seed Science and Technology and Plant Breeding. As well, it would be useful for people in seed industry. It would also be beneficial for newcomers because of the lucid style in which the various topics are handled. This book will be useful, we hope, to all those who wants to have a quick grasp of the subject of seed science and technology in shortest time.