This book, entitled Improvement and seed production of annual crops, brings together in 15 chapters technical and scientific information related to seed production and genetic improvement of annual crops such as soya, maize, wheat and beans. The book covers issues of seed production field management, adaptability and stability of genotypes grown in different soil and climate conditions, alternative fertilisations as a source of nitrogen, phytosanitary implications in seed production and breeding, as well as a review of the main aspects that must be observed when choosing and positioning superior genotypes, aiming for high yields in the agricultural context. We wish you all a great read.