This book entitled Principles of Marketing has been written as per the syllabus of Bharathiar University for B.Com students. The book provides a complete coverage of contemporary topics such as Meaning of Market and Marketing, Modern Marketing Concepts, Market forecasting and Market Research, Marketing information System, Product Planning, Product Development, Branding, Pricing system, Promotional activities, Management of Physical distribution. Therefore I have made a humble attempt to write this book in the most comprehensive manner to suit the needs of the students pursuing their graduation in Commerce.