This book shows how to write an expression of interest (EOI) in response to a proposal. It can be an advertisement in the newspaper or television. This book shows how to write an EOI by working on an example having topic "EIA of Shopping plaza." The advertisement says that proposals are invited from renowned national firms for providing consulting services to Punjab developers for the development of a Mega Shopping Plaza (10 floors) in Lahore. The interested consultancy firms are required to submit their applications for preparing the design of the shopping plaza and infrastructural development work.