The book "Investigating the Transmission Mechanism of Monetary Policy in Egypt" offers a comprehensive analysis of the transmission mechanisms of monetary policy on Egypt's macroeconomy between 1973 and the 2011 revolution. It includes five empirical studies that address various aspects of economic development, including consumption and investment spending under uncertainty. The results of these studies form the basis for the subsequent chapters, which discuss the interest rate channel, the bank credit channel, and the exchange rate channel in the context of regime changes. The book also provides a detailed discussion of the economic policies and developments in Egypt that are relevant to the analysis. The empirical findings indicate that the interest rate affects real GDP through the consumption channel, while both the bank credit channel and the exchange rate channel influence real income through the investment channel. Various econometric techniques are employed to validate these results.