The book "Market Linkages and Price Transmission in Sudan" by Khalid Siddig provides a comprehensive analysis of market linkages and price movements of sesame, one of Sudan's most important agricultural exports. It examines price developments in four significant markets – Elgadarif, Elobeyid, Omrawaba, and Tandelti – over a period from 1986 to 2000. By applying cointegration analysis, it demonstrates that the markets are integrated in the long term, with the western markets being particularly interconnected. The findings suggest that the markets in Elgadarif and Elobeyid are primarily responsible for price changes in sesame. The book emphasizes the need to improve marketing infrastructure to reduce transportation costs and increase storage capacities in production areas to ensure efficient market performance.