Complex Numbers have remained without a real value for nearly four centuries. This book gives an ideology by which the real value nature of a complex number is discovered. A new mathematical language based on duality is introduced in the book. Unique properties of this duality, that accounts for the real value nature of complex numbers, are also investigated. The book gives a new definition to complex numbers and explains the true significance of these imaginary quantities. An unprecedented concept is enunciated to answer the previously unanswerable question, do complex numbers have a real value? Yes they do have and this book shows how!