The treatise presents a wide range of information on different facets of world food crops. It justifies the present state of knowledge with reference to crop history, initial and latest developments with evolutionary approach based on karyotaxonomic and geographical evidence. The author has endeavored to dilate attempts for crop domestication and cultivation by worldwide human societies. These are supported by various considerations like ethnology, philology, ancient and religious treatises, archaeological evidence, works of pioneers, various human affairs, etc. He further based his writing on botanical conclusions accrued from distribution, number of varieties, occurrence of wild types, agro-botanical characteristics, time and place of origin, and worldwide usage of each crop species. The treatise is a highly-acclaimed source of information of crop plants useful to degree and post-graduate students of botany, agriculture and food science as a main text and reference work for researchers. It is recommendable for use in any country especially in the English speaking world. It will also appeal to the general reader, being rich in contents. In a nutshell, this treatise is a history of development of food crops. And therefore, a humble attempt has been made, first, to ascertain what was actually done or said, and second, to emphasize the causes of success or failure. Truly, it is the study of causes that makes history more fruitful and a basis for evaluating the future events with confidence.