In this book, the author with his long teaching experience in the subject has made an attempt to present the subject matter of ‘Design of Concrete Structures’ in a way which lays emphasis on the fundamentals, keeping in view, the difficulties experienced by the students. Every basic principle. Method, equation or theory has been presented in a simplified manner. Every basic principle, The text has been described in a sequence most naturally desired and appealed to the student. SI system of units has been used throughout the text. Indian standard specifications (specially, SI: 456-1978) have been used. The symbols and notations used in the text match with those of present code of practice. The book is intended for Degree, Diploma and AMIE students.