Organometallic Chemistry tries to understand how organic molecules or groups interact with compounds of inorganic elements chiefly metals. The subject is of great interest to chemist because of its rich, versatile chemistry and extensive applications in industry and catalysis. The text book entitled ?Organometallic and Reagent Chemistry? is intended for UG-CBCS Chemistry Core course for different Indian Universities as well as NET, GATE, JAM etc. The present volume contains of two parts viz. Part A and Part B. Each part consists of seven and three chapters respectively. The subject matter is represented in a logical way with special emphasis on ?Organometallic and Reagent Chemistry?.