While the global marketplace is cluttered with books and products about agriculture and related issues of development, very few speak specifically to agricultural extension and its practices worldwide. Agriculture is the main source of livelihood for a majority of rural people and is often referred to as the mainstay of the economy of the developing world. Agricultural Extension practices or advisory services as per usage in some countries provide a close examination of country-by-country approach. In the book, contributions are drawn from thirteen countries in four regions of the world. Furthermore, the editors list the countries alphabetically. The countries are Botswana, Cameroon, Canada, Ghana, India, Kenya, Nigeria, South Africa, Swaziland, Tanzania, Ukraine and the United States of America. The many contributors of the book at the onset explore the historical evolution of agricultural extension in their respective countries. For example, during the colonial era and prior to self-governance in several African countries, agriculture was the sole powerhouse that supplied raw materials to the industries of the now western societies. The effective connection between the 'colonial masters' and the search for rural raw materials was the agricultural extension worker. In one way, this book helps to connect the history of colonial and post-colonial Africa in the sustenance of agricultural development in Europe and America. Canada and the United States of America share a lot but also have many differences in their approach to agricultural extension. While America owes its origins to the land grant cooperative extension service with a mandate to state supported universities for the implementation of its programs, Canada traced its need for agricultural extension services to the adaptation of technologies to individual skills for expanded production for growing population (Hamby, 2019). Additionally, while Canada, at one time with reason, withdrew from public agricultural extension, the USA never followed that path since its inception of extension work in 1785. Formal law organizing the agricultural extension service sector in Ukraine is recent. Extension law of Ukraine was adopted in 2004 allowing for a robust participation of both public and private sector. (Windon and Zaburanna, 2019).The chapter on Ukraine provides insights to the understanding of this effort. The success of India's agricultural revolution could be traced to the resilience of local rural farmers who labored day and night tilling the soil in a sustainable manner. Indian and Pakistani farmers worked alongside extension workers in their respective countries to provide the advice and education that helped the transformation of the agricultural sector. Finally, there are two important points to make here. First, this book, while based on agricultural extension practices, provides a country-by-country comparative assessment. It is easy to read and a good narrative to follow. However, the comparisons are largely limited to the countries examined in the book. Second, the book allows us to review the success and failures of major institutions such as the World Bank, international development agencies and other donor organizations for their participation and recommendation to the efforts of countries involved in the practice of agricultural extension worldwide.